diff --git a/src/core/ngx_conf_file.c b/src/core/ngx_conf_file.c
index fb72656..c60d5fb 100644
--- a/src/core/ngx_conf_file.c
+++ b/src/core/ngx_conf_file.c
@@ -613,9 +613,9 @@
                 need_space = 0;
 
             } else {
-                 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
-                                    "unexpected \"%c\"", ch);
-                 return NGX_ERROR;
+                ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
+                                   "unexpected \"%c\"", ch);
+                return NGX_ERROR;
             }
         }
 
diff --git a/src/core/ngx_connection.c b/src/core/ngx_connection.c
index 572def2..5a53bac 100644
--- a/src/core/ngx_connection.c
+++ b/src/core/ngx_connection.c
@@ -47,21 +47,21 @@
     switch (ls->sockaddr->sa_family) {
 #if (NGX_HAVE_INET6)
     case AF_INET6:
-         ls->addr_text_max_len = NGX_INET6_ADDRSTRLEN;
-         break;
+        ls->addr_text_max_len = NGX_INET6_ADDRSTRLEN;
+        break;
 #endif
 #if (NGX_HAVE_UNIX_DOMAIN)
     case AF_UNIX:
-         ls->addr_text_max_len = NGX_UNIX_ADDRSTRLEN;
-         len++;
-         break;
+        ls->addr_text_max_len = NGX_UNIX_ADDRSTRLEN;
+        len++;
+        break;
 #endif
     case AF_INET:
-         ls->addr_text_max_len = NGX_INET_ADDRSTRLEN;
-         break;
+        ls->addr_text_max_len = NGX_INET_ADDRSTRLEN;
+        break;
     default:
-         ls->addr_text_max_len = NGX_SOCKADDR_STRLEN;
-         break;
+        ls->addr_text_max_len = NGX_SOCKADDR_STRLEN;
+        break;
     }
 
     ls->addr_text.data = ngx_pnalloc(cf->pool, len);
@@ -168,22 +168,22 @@
 
 #if (NGX_HAVE_INET6)
         case AF_INET6:
-             ls[i].addr_text_max_len = NGX_INET6_ADDRSTRLEN;
-             len = NGX_INET6_ADDRSTRLEN + sizeof("[]:65535") - 1;
-             break;
+            ls[i].addr_text_max_len = NGX_INET6_ADDRSTRLEN;
+            len = NGX_INET6_ADDRSTRLEN + sizeof("[]:65535") - 1;
+            break;
 #endif
 
 #if (NGX_HAVE_UNIX_DOMAIN)
         case AF_UNIX:
-             ls[i].addr_text_max_len = NGX_UNIX_ADDRSTRLEN;
-             len = NGX_UNIX_ADDRSTRLEN;
-             break;
+            ls[i].addr_text_max_len = NGX_UNIX_ADDRSTRLEN;
+            len = NGX_UNIX_ADDRSTRLEN;
+            break;
 #endif
 
         case AF_INET:
-             ls[i].addr_text_max_len = NGX_INET_ADDRSTRLEN;
-             len = NGX_INET_ADDRSTRLEN + sizeof(":65535") - 1;
-             break;
+            ls[i].addr_text_max_len = NGX_INET_ADDRSTRLEN;
+            len = NGX_INET_ADDRSTRLEN + sizeof(":65535") - 1;
+            break;
 
         default:
             ngx_log_error(NGX_LOG_CRIT, cycle->log, ngx_socket_errno,
diff --git a/src/core/ngx_connection.h b/src/core/ngx_connection.h
index 19a2ab7..b0d162a 100644
--- a/src/core/ngx_connection.h
+++ b/src/core/ngx_connection.h
@@ -95,25 +95,25 @@
 
 
 typedef enum {
-     NGX_ERROR_ALERT = 0,
-     NGX_ERROR_ERR,
-     NGX_ERROR_INFO,
-     NGX_ERROR_IGNORE_ECONNRESET,
-     NGX_ERROR_IGNORE_EINVAL
+    NGX_ERROR_ALERT = 0,
+    NGX_ERROR_ERR,
+    NGX_ERROR_INFO,
+    NGX_ERROR_IGNORE_ECONNRESET,
+    NGX_ERROR_IGNORE_EINVAL
 } ngx_connection_log_error_e;
 
 
 typedef enum {
-     NGX_TCP_NODELAY_UNSET = 0,
-     NGX_TCP_NODELAY_SET,
-     NGX_TCP_NODELAY_DISABLED
+    NGX_TCP_NODELAY_UNSET = 0,
+    NGX_TCP_NODELAY_SET,
+    NGX_TCP_NODELAY_DISABLED
 } ngx_connection_tcp_nodelay_e;
 
 
 typedef enum {
-     NGX_TCP_NOPUSH_UNSET = 0,
-     NGX_TCP_NOPUSH_SET,
-     NGX_TCP_NOPUSH_DISABLED
+    NGX_TCP_NOPUSH_UNSET = 0,
+    NGX_TCP_NOPUSH_SET,
+    NGX_TCP_NOPUSH_DISABLED
 } ngx_connection_tcp_nopush_e;
 
 
diff --git a/src/core/ngx_crypt.c b/src/core/ngx_crypt.c
index d7d068c..9db74f4 100644
--- a/src/core/ngx_crypt.c
+++ b/src/core/ngx_crypt.c
@@ -165,8 +165,8 @@
         "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 
     while (n--) {
-       *p++ = itoa64[v & 0x3f];
-       v >>= 6;
+        *p++ = itoa64[v & 0x3f];
+        v >>= 6;
     }
 
     return p;
diff --git a/src/core/ngx_cycle.h b/src/core/ngx_cycle.h
index cfdbb55..c51b7ff 100644
--- a/src/core/ngx_cycle.h
+++ b/src/core/ngx_cycle.h
@@ -79,35 +79,35 @@
 
 
 typedef struct {
-     ngx_flag_t               daemon;
-     ngx_flag_t               master;
+    ngx_flag_t                daemon;
+    ngx_flag_t                master;
 
-     ngx_msec_t               timer_resolution;
+    ngx_msec_t                timer_resolution;
 
-     ngx_int_t                worker_processes;
-     ngx_int_t                debug_points;
+    ngx_int_t                 worker_processes;
+    ngx_int_t                 debug_points;
 
-     ngx_int_t                rlimit_nofile;
-     off_t                    rlimit_core;
+    ngx_int_t                 rlimit_nofile;
+    off_t                     rlimit_core;
 
-     int                      priority;
+    int                       priority;
 
-     ngx_uint_t               cpu_affinity_auto;
-     ngx_uint_t               cpu_affinity_n;
-     ngx_cpuset_t            *cpu_affinity;
+    ngx_uint_t                cpu_affinity_auto;
+    ngx_uint_t                cpu_affinity_n;
+    ngx_cpuset_t             *cpu_affinity;
 
-     char                    *username;
-     ngx_uid_t                user;
-     ngx_gid_t                group;
+    char                     *username;
+    ngx_uid_t                 user;
+    ngx_gid_t                 group;
 
-     ngx_str_t                working_directory;
-     ngx_str_t                lock_file;
+    ngx_str_t                 working_directory;
+    ngx_str_t                 lock_file;
 
-     ngx_str_t                pid;
-     ngx_str_t                oldpid;
+    ngx_str_t                 pid;
+    ngx_str_t                 oldpid;
 
-     ngx_array_t              env;
-     char                   **environment;
+    ngx_array_t               env;
+    char                    **environment;
 } ngx_core_conf_t;
 
 
diff --git a/src/core/ngx_file.c b/src/core/ngx_file.c
index d3e2ece..6c16e20 100644
--- a/src/core/ngx_file.c
+++ b/src/core/ngx_file.c
@@ -155,7 +155,7 @@
 
 #if 0
     for (i = 0; i < file->name.len; i++) {
-         file->name.data[i] = 'X';
+        file->name.data[i] = 'X';
     }
 #endif
 
diff --git a/src/core/ngx_inet.c b/src/core/ngx_inet.c
index 3bbadb8..765bda5 100644
--- a/src/core/ngx_inet.c
+++ b/src/core/ngx_inet.c
@@ -1242,19 +1242,19 @@
 #if (NGX_HAVE_UNIX_DOMAIN)
     case AF_UNIX:
 
-       /* TODO length */
+        /* TODO length */
 
-       saun1 = (struct sockaddr_un *) sa1;
-       saun2 = (struct sockaddr_un *) sa2;
+        saun1 = (struct sockaddr_un *) sa1;
+        saun2 = (struct sockaddr_un *) sa2;
 
-       if (ngx_memcmp(&saun1->sun_path, &saun2->sun_path,
-                      sizeof(saun1->sun_path))
-           != 0)
-       {
-           return NGX_DECLINED;
-       }
+        if (ngx_memcmp(&saun1->sun_path, &saun2->sun_path,
+                       sizeof(saun1->sun_path))
+            != 0)
+        {
+            return NGX_DECLINED;
+        }
 
-       break;
+        break;
 #endif
 
     default: /* AF_INET */
diff --git a/src/core/ngx_log.c b/src/core/ngx_log.c
index 0893871..e720079 100644
--- a/src/core/ngx_log.c
+++ b/src/core/ngx_log.c
@@ -33,14 +33,14 @@
 
 static ngx_command_t  ngx_errlog_commands[] = {
 
-    {ngx_string("error_log"),
-     NGX_MAIN_CONF|NGX_CONF_1MORE,
-     ngx_error_log,
-     0,
-     0,
-     NULL},
+    { ngx_string("error_log"),
+      NGX_MAIN_CONF|NGX_CONF_1MORE,
+      ngx_error_log,
+      0,
+      0,
+      NULL },
 
-    ngx_null_command
+      ngx_null_command
 };
 
 
@@ -585,7 +585,7 @@
             return NGX_CONF_ERROR;
         }
 
-     } else if (ngx_strncmp(value[1].data, "memory:", 7) == 0) {
+    } else if (ngx_strncmp(value[1].data, "memory:", 7) == 0) {
 
 #if (NGX_DEBUG)
         size_t                 size, needed;
@@ -644,7 +644,7 @@
         return NGX_CONF_ERROR;
 #endif
 
-     } else if (ngx_strncmp(value[1].data, "syslog:", 7) == 0) {
+    } else if (ngx_strncmp(value[1].data, "syslog:", 7) == 0) {
         peer = ngx_pcalloc(cf->pool, sizeof(ngx_syslog_peer_t));
         if (peer == NULL) {
             return NGX_CONF_ERROR;
diff --git a/src/core/ngx_parse_time.c b/src/core/ngx_parse_time.c
index 831cc71..13afde3 100644
--- a/src/core/ngx_parse_time.c
+++ b/src/core/ngx_parse_time.c
@@ -220,7 +220,7 @@
     }
 
     if (hour > 23 || min > 59 || sec > 59) {
-         return NGX_ERROR;
+        return NGX_ERROR;
     }
 
     if (day == 29 && month == 1) {
diff --git a/src/core/ngx_slab.c b/src/core/ngx_slab.c
index c112506..fa2a646 100644
--- a/src/core/ngx_slab.c
+++ b/src/core/ngx_slab.c
@@ -222,11 +222,11 @@
 
                             if (bitmap[n] == NGX_SLAB_BUSY) {
                                 for (n = n + 1; n < map; n++) {
-                                     if (bitmap[n] != NGX_SLAB_BUSY) {
-                                         p = (uintptr_t) bitmap + i;
+                                    if (bitmap[n] != NGX_SLAB_BUSY) {
+                                        p = (uintptr_t) bitmap + i;
 
-                                         goto done;
-                                     }
+                                        goto done;
+                                    }
                                 }
 
                                 prev = (ngx_slab_page_t *)
diff --git a/src/core/ngx_syslog.c b/src/core/ngx_syslog.c
index 08f4c04..0a67928 100644
--- a/src/core/ngx_syslog.c
+++ b/src/core/ngx_syslog.c
@@ -10,9 +10,9 @@
 
 
 #define NGX_SYSLOG_MAX_STR                                                    \
-     NGX_MAX_ERROR_STR + sizeof("<255>Jan 01 00:00:00 ") - 1                  \
-     + (NGX_MAXHOSTNAMELEN - 1) + 1 /* space */                               \
-     + 32 /* tag */ + 2 /* colon, space */
+    NGX_MAX_ERROR_STR + sizeof("<255>Jan 01 00:00:00 ") - 1                   \
+    + (NGX_MAXHOSTNAMELEN - 1) + 1 /* space */                                \
+    + 32 /* tag */ + 2 /* colon, space */
 
 
 static char *ngx_syslog_parse_args(ngx_conf_t *cf, ngx_syslog_peer_t *peer);
diff --git a/src/event/modules/ngx_iocp_module.c b/src/event/modules/ngx_iocp_module.c
index e384707..8f163e3 100644
--- a/src/event/modules/ngx_iocp_module.c
+++ b/src/event/modules/ngx_iocp_module.c
@@ -27,28 +27,28 @@
 
 static ngx_command_t  ngx_iocp_commands[] = {
 
-    {ngx_string("iocp_threads"),
-     NGX_EVENT_CONF|NGX_CONF_TAKE1,
-     ngx_conf_set_num_slot,
-     0,
-     offsetof(ngx_iocp_conf_t, threads),
-     NULL},
+    { ngx_string("iocp_threads"),
+      NGX_EVENT_CONF|NGX_CONF_TAKE1,
+      ngx_conf_set_num_slot,
+      0,
+      offsetof(ngx_iocp_conf_t, threads),
+      NULL },
 
-    {ngx_string("post_acceptex"),
-     NGX_EVENT_CONF|NGX_CONF_TAKE1,
-     ngx_conf_set_num_slot,
-     0,
-     offsetof(ngx_iocp_conf_t, post_acceptex),
-     NULL},
+    { ngx_string("post_acceptex"),
+      NGX_EVENT_CONF|NGX_CONF_TAKE1,
+      ngx_conf_set_num_slot,
+      0,
+      offsetof(ngx_iocp_conf_t, post_acceptex),
+      NULL },
 
-    {ngx_string("acceptex_read"),
-     NGX_EVENT_CONF|NGX_CONF_FLAG,
-     ngx_conf_set_flag_slot,
-     0,
-     offsetof(ngx_iocp_conf_t, acceptex_read),
-     NULL},
+    { ngx_string("acceptex_read"),
+      NGX_EVENT_CONF|NGX_CONF_FLAG,
+      ngx_conf_set_flag_slot,
+      0,
+      offsetof(ngx_iocp_conf_t, acceptex_read),
+      NULL },
 
-    ngx_null_command
+      ngx_null_command
 };
 
 
diff --git a/src/event/ngx_event.h b/src/event/ngx_event.h
index 591005a..ed0682c 100644
--- a/src/event/ngx_event.h
+++ b/src/event/ngx_event.h
@@ -188,7 +188,7 @@
     ngx_int_t  (*notify)(ngx_event_handler_pt handler);
 
     ngx_int_t  (*process_events)(ngx_cycle_t *cycle, ngx_msec_t timer,
-                   ngx_uint_t flags);
+                                 ngx_uint_t flags);
 
     ngx_int_t  (*init)(ngx_cycle_t *cycle, ngx_msec_t timer);
     void       (*done)(ngx_cycle_t *cycle);
diff --git a/src/event/ngx_event_openssl.c b/src/event/ngx_event_openssl.c
index de10d48..59534c6 100644
--- a/src/event/ngx_event_openssl.c
+++ b/src/event/ngx_event_openssl.c
@@ -2542,9 +2542,9 @@
 void
 ngx_ssl_remove_cached_session(SSL_CTX *ssl, ngx_ssl_session_t *sess)
 {
-     SSL_CTX_remove_session(ssl, sess);
+    SSL_CTX_remove_session(ssl, sess);
 
-     ngx_ssl_remove_session(ssl, sess);
+    ngx_ssl_remove_session(ssl, sess);
 }
 
 
diff --git a/src/event/ngx_event_pipe.c b/src/event/ngx_event_pipe.c
index ee86c7e..795688c 100644
--- a/src/event/ngx_event_pipe.c
+++ b/src/event/ngx_event_pipe.c
@@ -434,7 +434,7 @@
             /* STUB */ cl->buf->num = p->num++;
 
             if (p->input_filter(p, cl->buf) == NGX_ERROR) {
-                 return NGX_ABORT;
+                return NGX_ABORT;
             }
 
             ngx_free_chain(p->pool, cl);
@@ -801,12 +801,12 @@
         }
 
         if (cl) {
-           p->in = cl;
-           *ll = NULL;
+            p->in = cl;
+            *ll = NULL;
 
         } else {
-           p->in = NULL;
-           p->last_in = &p->in;
+            p->in = NULL;
+            p->last_in = &p->in;
         }
 
     } else {
diff --git a/src/http/modules/ngx_http_dav_module.c b/src/http/modules/ngx_http_dav_module.c
index b9fadd0..3600265 100644
--- a/src/http/modules/ngx_http_dav_module.c
+++ b/src/http/modules/ngx_http_dav_module.c
@@ -621,11 +621,11 @@
     if ((r->uri.data[r->uri.len - 1] == '/' && *(last - 1) != '/')
         || (r->uri.data[r->uri.len - 1] != '/' && *(last - 1) == '/'))
     {
-         ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
-                       "both URI \"%V\" and \"Destination\" URI \"%V\" "
-                       "should be either collections or non-collections",
-                       &r->uri, &dest->value);
-         return NGX_HTTP_CONFLICT;
+        ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
+                      "both URI \"%V\" and \"Destination\" URI \"%V\" "
+                      "should be either collections or non-collections",
+                      &r->uri, &dest->value);
+        return NGX_HTTP_CONFLICT;
     }
 
     depth = ngx_http_dav_depth(r, NGX_HTTP_DAV_INFINITY_DEPTH);
diff --git a/src/http/modules/ngx_http_fastcgi_module.c b/src/http/modules/ngx_http_fastcgi_module.c
index e3024b3..378f3fd 100644
--- a/src/http/modules/ngx_http_fastcgi_module.c
+++ b/src/http/modules/ngx_http_fastcgi_module.c
@@ -751,7 +751,7 @@
     url.no_resolve = 1;
 
     if (ngx_parse_url(r->pool, &url) != NGX_OK) {
-         if (url.err) {
+        if (url.err) {
             ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
                           "%s in upstream \"%V\"", url.err, &url.url);
         }
@@ -1800,7 +1800,7 @@
 
             } else {
                 r->cache->header_start += u->buffer.pos - start
-                                           - sizeof(ngx_http_fastcgi_header_t);
+                                          - sizeof(ngx_http_fastcgi_header_t);
             }
 
             f->large_stderr = 0;
@@ -2558,8 +2558,8 @@
             case NGX_HTTP_FASTCGI_STDOUT:
             case NGX_HTTP_FASTCGI_STDERR:
             case NGX_HTTP_FASTCGI_END_REQUEST:
-                 f->type = (ngx_uint_t) ch;
-                 break;
+                f->type = (ngx_uint_t) ch;
+                break;
             default:
                 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
                               "upstream sent invalid FastCGI "
@@ -2654,7 +2654,7 @@
 static ngx_int_t
 ngx_http_fastcgi_add_variables(ngx_conf_t *cf)
 {
-   ngx_http_variable_t  *var, *v;
+    ngx_http_variable_t  *var, *v;
 
     for (v = ngx_http_fastcgi_vars; v->name.len; v++) {
         var = ngx_http_add_variable(cf, &v->name, v->flags);
diff --git a/src/http/modules/ngx_http_image_filter_module.c b/src/http/modules/ngx_http_image_filter_module.c
index bd7a309..e70b427 100644
--- a/src/http/modules/ngx_http_image_filter_module.c
+++ b/src/http/modules/ngx_http_image_filter_module.c
@@ -144,7 +144,7 @@
       offsetof(ngx_http_image_filter_conf_t, transparency),
       NULL },
 
-   { ngx_string("image_filter_interlace"),
+    { ngx_string("image_filter_interlace"),
       NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
       ngx_conf_set_flag_slot,
       NGX_HTTP_LOC_CONF_OFFSET,
diff --git a/src/http/modules/ngx_http_mp4_module.c b/src/http/modules/ngx_http_mp4_module.c
index 980bf57..04bf9c1 100644
--- a/src/http/modules/ngx_http_mp4_module.c
+++ b/src/http/modules/ngx_http_mp4_module.c
@@ -2555,14 +2555,14 @@
                        "sample:%uD, count:%uD, offset:%uD",
                        start_sample, count, ngx_mp4_get_32value(entry->offset));
 
-         if (start_sample <= count) {
-             rest = start_sample - 1;
-             goto found;
-         }
+        if (start_sample <= count) {
+            rest = start_sample - 1;
+            goto found;
+        }
 
-         start_sample -= count;
-         entries--;
-         entry++;
+        start_sample -= count;
+        entries--;
+        entry++;
     }
 
     if (start) {
diff --git a/src/http/modules/ngx_http_range_filter_module.c b/src/http/modules/ngx_http_range_filter_module.c
index b07b2e2..55bb8ae 100644
--- a/src/http/modules/ngx_http_range_filter_module.c
+++ b/src/http/modules/ngx_http_range_filter_module.c
@@ -665,7 +665,7 @@
         range = ctx->ranges.elts;
         for (i = 0; i < ctx->ranges.nelts; i++) {
             if (start > range[i].start || last < range[i].end) {
-                 goto overlapped;
+                goto overlapped;
             }
         }
     }
diff --git a/src/http/modules/ngx_http_realip_module.c b/src/http/modules/ngx_http_realip_module.c
index c3d7ebe..b7befe6 100644
--- a/src/http/modules/ngx_http_realip_module.c
+++ b/src/http/modules/ngx_http_realip_module.c
@@ -328,8 +328,8 @@
 #if (NGX_HAVE_UNIX_DOMAIN)
 
     if (ngx_strcmp(value[1].data, "unix:") == 0) {
-         cidr->family = AF_UNIX;
-         return NGX_CONF_OK;
+        cidr->family = AF_UNIX;
+        return NGX_CONF_OK;
     }
 
 #endif
diff --git a/src/http/modules/ngx_http_referer_module.c b/src/http/modules/ngx_http_referer_module.c
index b417eb2..3f0f78e 100644
--- a/src/http/modules/ngx_http_referer_module.c
+++ b/src/http/modules/ngx_http_referer_module.c
@@ -109,7 +109,7 @@
 
 static ngx_int_t
 ngx_http_referer_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v,
-     uintptr_t data)
+    uintptr_t data)
 {
     u_char                    *p, *ref, *last;
     size_t                     len;
diff --git a/src/http/modules/ngx_http_rewrite_module.c b/src/http/modules/ngx_http_rewrite_module.c
index 2ec7f5d..6b2444c 100644
--- a/src/http/modules/ngx_http_rewrite_module.c
+++ b/src/http/modules/ngx_http_rewrite_module.c
@@ -571,7 +571,7 @@
 
             mconf = module->create_loc_conf(cf);
             if (mconf == NULL) {
-                 return NGX_CONF_ERROR;
+                return NGX_CONF_ERROR;
             }
 
             ctx->loc_conf[cf->cycle->modules[i]->ctx_index] = mconf;
diff --git a/src/http/modules/ngx_http_scgi_module.c b/src/http/modules/ngx_http_scgi_module.c
index b468eb7..f09617e 100644
--- a/src/http/modules/ngx_http_scgi_module.c
+++ b/src/http/modules/ngx_http_scgi_module.c
@@ -876,7 +876,7 @@
         next:
 
             continue;
-         }
+        }
     }
 
     *b->last++ = (u_char) ',';
diff --git a/src/http/modules/ngx_http_ssl_module.c b/src/http/modules/ngx_http_ssl_module.c
index 7b051ea..778bc93 100644
--- a/src/http/modules/ngx_http_ssl_module.c
+++ b/src/http/modules/ngx_http_ssl_module.c
@@ -337,8 +337,8 @@
 
 #if (NGX_DEBUG)
     for (i = 0; i < inlen; i += in[i] + 1) {
-         ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
-                        "SSL ALPN supported by client: %*s", in[i], &in[i + 1]);
+        ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
+                       "SSL ALPN supported by client: %*s", in[i], &in[i + 1]);
     }
 #endif
 
diff --git a/src/http/modules/ngx_http_upstream_least_conn_module.c b/src/http/modules/ngx_http_upstream_least_conn_module.c
index 92951bd..8a300c1 100644
--- a/src/http/modules/ngx_http_upstream_least_conn_module.c
+++ b/src/http/modules/ngx_http_upstream_least_conn_module.c
@@ -259,7 +259,7 @@
                 / (8 * sizeof(uintptr_t));
 
         for (i = 0; i < n; i++) {
-             rrp->tried[i] = 0;
+            rrp->tried[i] = 0;
         }
 
         ngx_http_upstream_rr_peers_unlock(peers);
diff --git a/src/http/ngx_http_core_module.c b/src/http/ngx_http_core_module.c
index b88e869..7a126bd 100644
--- a/src/http/ngx_http_core_module.c
+++ b/src/http/ngx_http_core_module.c
@@ -1222,7 +1222,7 @@
             }
 
             name = path.data + root;
-         }
+        }
 
         if (tf->values == NULL) {
 
@@ -3104,7 +3104,7 @@
             ctx->loc_conf[cf->cycle->modules[i]->ctx_index] =
                                                    module->create_loc_conf(cf);
             if (ctx->loc_conf[cf->cycle->modules[i]->ctx_index] == NULL) {
-                 return NGX_CONF_ERROR;
+                return NGX_CONF_ERROR;
             }
         }
     }
@@ -4540,21 +4540,21 @@
 
 
 static ngx_http_method_name_t  ngx_methods_names[] = {
-   { (u_char *) "GET",       (uint32_t) ~NGX_HTTP_GET },
-   { (u_char *) "HEAD",      (uint32_t) ~NGX_HTTP_HEAD },
-   { (u_char *) "POST",      (uint32_t) ~NGX_HTTP_POST },
-   { (u_char *) "PUT",       (uint32_t) ~NGX_HTTP_PUT },
-   { (u_char *) "DELETE",    (uint32_t) ~NGX_HTTP_DELETE },
-   { (u_char *) "MKCOL",     (uint32_t) ~NGX_HTTP_MKCOL },
-   { (u_char *) "COPY",      (uint32_t) ~NGX_HTTP_COPY },
-   { (u_char *) "MOVE",      (uint32_t) ~NGX_HTTP_MOVE },
-   { (u_char *) "OPTIONS",   (uint32_t) ~NGX_HTTP_OPTIONS },
-   { (u_char *) "PROPFIND",  (uint32_t) ~NGX_HTTP_PROPFIND },
-   { (u_char *) "PROPPATCH", (uint32_t) ~NGX_HTTP_PROPPATCH },
-   { (u_char *) "LOCK",      (uint32_t) ~NGX_HTTP_LOCK },
-   { (u_char *) "UNLOCK",    (uint32_t) ~NGX_HTTP_UNLOCK },
-   { (u_char *) "PATCH",     (uint32_t) ~NGX_HTTP_PATCH },
-   { NULL, 0 }
+    { (u_char *) "GET",       (uint32_t) ~NGX_HTTP_GET },
+    { (u_char *) "HEAD",      (uint32_t) ~NGX_HTTP_HEAD },
+    { (u_char *) "POST",      (uint32_t) ~NGX_HTTP_POST },
+    { (u_char *) "PUT",       (uint32_t) ~NGX_HTTP_PUT },
+    { (u_char *) "DELETE",    (uint32_t) ~NGX_HTTP_DELETE },
+    { (u_char *) "MKCOL",     (uint32_t) ~NGX_HTTP_MKCOL },
+    { (u_char *) "COPY",      (uint32_t) ~NGX_HTTP_COPY },
+    { (u_char *) "MOVE",      (uint32_t) ~NGX_HTTP_MOVE },
+    { (u_char *) "OPTIONS",   (uint32_t) ~NGX_HTTP_OPTIONS },
+    { (u_char *) "PROPFIND",  (uint32_t) ~NGX_HTTP_PROPFIND },
+    { (u_char *) "PROPPATCH", (uint32_t) ~NGX_HTTP_PROPPATCH },
+    { (u_char *) "LOCK",      (uint32_t) ~NGX_HTTP_LOCK },
+    { (u_char *) "UNLOCK",    (uint32_t) ~NGX_HTTP_UNLOCK },
+    { (u_char *) "PATCH",     (uint32_t) ~NGX_HTTP_PATCH },
+    { NULL, 0 }
 };
 
 
@@ -4627,7 +4627,7 @@
 
             mconf = module->create_loc_conf(cf);
             if (mconf == NULL) {
-                 return NGX_CONF_ERROR;
+                return NGX_CONF_ERROR;
             }
 
             ctx->loc_conf[cf->cycle->modules[i]->ctx_index] = mconf;
diff --git a/src/http/ngx_http_core_module.h b/src/http/ngx_http_core_module.h
index 231c507..6c446a0 100644
--- a/src/http/ngx_http_core_module.h
+++ b/src/http/ngx_http_core_module.h
@@ -232,10 +232,10 @@
 
 
 typedef struct {
-     ngx_hash_combined_t       names;
+    ngx_hash_combined_t        names;
 
-     ngx_uint_t                nregex;
-     ngx_http_server_name_t   *regex;
+    ngx_uint_t                 nregex;
+    ngx_http_server_name_t    *regex;
 } ngx_http_virtual_names_t;
 
 
@@ -544,7 +544,7 @@
 ngx_int_t ngx_http_output_filter(ngx_http_request_t *r, ngx_chain_t *chain);
 ngx_int_t ngx_http_write_filter(ngx_http_request_t *r, ngx_chain_t *chain);
 ngx_int_t ngx_http_request_body_save_filter(ngx_http_request_t *r,
-   ngx_chain_t *chain);
+    ngx_chain_t *chain);
 
 
 ngx_int_t ngx_http_set_disable_symlinks(ngx_http_request_t *r,
diff --git a/src/http/ngx_http_script.c b/src/http/ngx_http_script.c
index 02e2be3..879c63c 100644
--- a/src/http/ngx_http_script.c
+++ b/src/http/ngx_http_script.c
@@ -19,10 +19,10 @@
 static ngx_int_t ngx_http_script_add_args_code(ngx_http_script_compile_t *sc);
 #if (NGX_PCRE)
 static ngx_int_t ngx_http_script_add_capture_code(ngx_http_script_compile_t *sc,
-     ngx_uint_t n);
+    ngx_uint_t n);
 #endif
 static ngx_int_t
-     ngx_http_script_add_full_name_code(ngx_http_script_compile_t *sc);
+    ngx_http_script_add_full_name_code(ngx_http_script_compile_t *sc);
 static size_t ngx_http_script_full_name_len_code(ngx_http_script_engine_t *e);
 static void ngx_http_script_full_name_code(ngx_http_script_engine_t *e);
 
diff --git a/src/http/ngx_http_upstream.c b/src/http/ngx_http_upstream.c
index 911049f..1386bdb 100644
--- a/src/http/ngx_http_upstream.c
+++ b/src/http/ngx_http_upstream.c
@@ -1883,17 +1883,17 @@
 
     if (!r->request_body_no_buffering) {
 
-       /* buffered request body */
+        /* buffered request body */
 
-       if (!u->request_sent) {
-           u->request_sent = 1;
-           out = u->request_bufs;
+        if (!u->request_sent) {
+            u->request_sent = 1;
+            out = u->request_bufs;
 
-       } else {
-           out = NULL;
-       }
+        } else {
+            out = NULL;
+        }
 
-       return ngx_output_chain(&u->output, out);
+        return ngx_output_chain(&u->output, out);
     }
 
     if (!u->request_sent) {
@@ -4327,10 +4327,10 @@
     pa = &u->headers_in.cache_control;
 
     if (pa->elts == NULL) {
-       if (ngx_array_init(pa, r->pool, 2, sizeof(ngx_table_elt_t *)) != NGX_OK)
-       {
-           return NGX_ERROR;
-       }
+        if (ngx_array_init(pa, r->pool, 2, sizeof(ngx_table_elt_t *)) != NGX_OK)
+        {
+            return NGX_ERROR;
+        }
     }
 
     ph = ngx_array_push(pa);
diff --git a/src/http/ngx_http_upstream_round_robin.c b/src/http/ngx_http_upstream_round_robin.c
index d6ae33b..8342dc8 100644
--- a/src/http/ngx_http_upstream_round_robin.c
+++ b/src/http/ngx_http_upstream_round_robin.c
@@ -480,7 +480,7 @@
                 / (8 * sizeof(uintptr_t));
 
         for (i = 0; i < n; i++) {
-             rrp->tried[i] = 0;
+            rrp->tried[i] = 0;
         }
 
         ngx_http_upstream_rr_peers_unlock(peers);
diff --git a/src/http/v2/ngx_http_v2_module.c b/src/http/v2/ngx_http_v2_module.c
index d99ac30..5a4561c 100644
--- a/src/http/v2/ngx_http_v2_module.c
+++ b/src/http/v2/ngx_http_v2_module.c
@@ -215,7 +215,7 @@
 static ngx_int_t
 ngx_http_v2_add_variables(ngx_conf_t *cf)
 {
-   ngx_http_variable_t  *var, *v;
+    ngx_http_variable_t  *var, *v;
 
     for (v = ngx_http_v2_vars; v->name.len; v++) {
         var = ngx_http_add_variable(cf, &v->name, v->flags);
diff --git a/src/mail/ngx_mail.h b/src/mail/ngx_mail.h
index 07d0cb6..bfbf768 100644
--- a/src/mail/ngx_mail.h
+++ b/src/mail/ngx_mail.h
@@ -342,7 +342,7 @@
 
     void                       *(*create_srv_conf)(ngx_conf_t *cf);
     char                       *(*merge_srv_conf)(ngx_conf_t *cf, void *prev,
-                                      void *conf);
+                                                  void *conf);
 } ngx_mail_module_t;
 
 
diff --git a/src/mail/ngx_mail_smtp_handler.c b/src/mail/ngx_mail_smtp_handler.c
index 46d703e..81cc75f 100644
--- a/src/mail/ngx_mail_smtp_handler.c
+++ b/src/mail/ngx_mail_smtp_handler.c
@@ -42,7 +42,7 @@
 static u_char  smtp_password[] = "334 UGFzc3dvcmQ6" CRLF;
 static u_char  smtp_invalid_command[] = "500 5.5.1 Invalid command" CRLF;
 static u_char  smtp_invalid_pipelining[] =
-   "503 5.5.0 Improper use of SMTP command pipelining" CRLF;
+    "503 5.5.0 Improper use of SMTP command pipelining" CRLF;
 static u_char  smtp_invalid_argument[] = "501 5.5.4 Invalid argument" CRLF;
 static u_char  smtp_auth_required[] = "530 5.7.1 Authentication required" CRLF;
 static u_char  smtp_bad_sequence[] = "503 5.5.1 Bad sequence of commands" CRLF;
diff --git a/src/mail/ngx_mail_ssl_module.c b/src/mail/ngx_mail_ssl_module.c
index 1075410..971085c 100644
--- a/src/mail/ngx_mail_ssl_module.c
+++ b/src/mail/ngx_mail_ssl_module.c
@@ -312,13 +312,13 @@
     conf->ssl.log = cf->log;
 
     if (conf->enable) {
-       mode = "ssl";
+        mode = "ssl";
 
     } else if (conf->starttls != NGX_MAIL_STARTTLS_OFF) {
-       mode = "starttls";
+        mode = "starttls";
 
     } else {
-       mode = "";
+        mode = "";
     }
 
     if (conf->file == NULL) {
diff --git a/src/os/unix/ngx_atomic.h b/src/os/unix/ngx_atomic.h
index 417cd86..74b8b7f 100644
--- a/src/os/unix/ngx_atomic.h
+++ b/src/os/unix/ngx_atomic.h
@@ -276,26 +276,26 @@
 
 static ngx_inline ngx_atomic_uint_t
 ngx_atomic_cmp_set(ngx_atomic_t *lock, ngx_atomic_uint_t old,
-     ngx_atomic_uint_t set)
+    ngx_atomic_uint_t set)
 {
-     if (*lock == old) {
-         *lock = set;
-         return 1;
-     }
+    if (*lock == old) {
+        *lock = set;
+        return 1;
+    }
 
-     return 0;
+    return 0;
 }
 
 
 static ngx_inline ngx_atomic_int_t
 ngx_atomic_fetch_add(ngx_atomic_t *value, ngx_atomic_int_t add)
 {
-     ngx_atomic_int_t  old;
+    ngx_atomic_int_t  old;
 
-     old = *value;
-     *value += add;
+    old = *value;
+    *value += add;
 
-     return old;
+    return old;
 }
 
 #define ngx_memory_barrier()
diff --git a/src/os/unix/ngx_channel.h b/src/os/unix/ngx_channel.h
index d7a9f6b..362cc64 100644
--- a/src/os/unix/ngx_channel.h
+++ b/src/os/unix/ngx_channel.h
@@ -15,10 +15,10 @@
 
 
 typedef struct {
-     ngx_uint_t  command;
-     ngx_pid_t   pid;
-     ngx_int_t   slot;
-     ngx_fd_t    fd;
+    ngx_uint_t  command;
+    ngx_pid_t   pid;
+    ngx_int_t   slot;
+    ngx_fd_t    fd;
 } ngx_channel_t;
 
 
diff --git a/src/os/unix/ngx_sunpro_amd64.il b/src/os/unix/ngx_sunpro_amd64.il
index dc454b2..07f3210 100644
--- a/src/os/unix/ngx_sunpro_amd64.il
+++ b/src/os/unix/ngx_sunpro_amd64.il
@@ -38,6 +38,6 @@
 /
 / ld.so.1: nginx: fatal: hardware capability unsupported: 0x2000 [ PAUSE ]
 
-       .inline ngx_cpu_pause,0
-       rep; nop
-       .end
+        .inline ngx_cpu_pause,0
+        rep; nop
+        .end
diff --git a/src/os/unix/ngx_sunpro_x86.il b/src/os/unix/ngx_sunpro_x86.il
index fd1cc00..d7e127c 100644
--- a/src/os/unix/ngx_sunpro_x86.il
+++ b/src/os/unix/ngx_sunpro_x86.il
@@ -39,6 +39,6 @@
 /
 / ld.so.1: nginx: fatal: hardware capability unsupported: 0x2000  [ PAUSE ]
 
-       .inline ngx_cpu_pause,0
-       rep; nop
-       .end
+        .inline ngx_cpu_pause,0
+        rep; nop
+        .end
diff --git a/src/os/win32/ngx_atomic.h b/src/os/win32/ngx_atomic.h
index d89a0d3..113f561 100644
--- a/src/os/win32/ngx_atomic.h
+++ b/src/os/win32/ngx_atomic.h
@@ -27,16 +27,16 @@
 /* the new SDK headers */
 
 #define ngx_atomic_cmp_set(lock, old, set)                                    \
-     ((ngx_atomic_uint_t) InterlockedCompareExchange((long *) lock, set, old) \
-                          == old)
+    ((ngx_atomic_uint_t) InterlockedCompareExchange((long *) lock, set, old)  \
+                         == old)
 
 #else
 
 /* the old MS VC6.0SP2 SDK headers */
 
 #define ngx_atomic_cmp_set(lock, old, set)                                    \
-     (InterlockedCompareExchange((void **) lock, (void *) set, (void *) old)  \
-      == (void *) old)
+    (InterlockedCompareExchange((void **) lock, (void *) set, (void *) old)   \
+     == (void *) old)
 
 #endif
 
diff --git a/src/os/win32/ngx_wsasend_chain.c b/src/os/win32/ngx_wsasend_chain.c
index 0815627..e2dde22 100644
--- a/src/os/win32/ngx_wsasend_chain.c
+++ b/src/os/win32/ngx_wsasend_chain.c
@@ -233,11 +233,11 @@
 
         } else if (ngx_event_flags & NGX_USE_IOCP_EVENT) {
 
-             /*
-              * if a socket was bound with I/O completion port then
-              * GetQueuedCompletionStatus() would anyway return its status
-              * despite that WSASend() was already complete
-              */
+            /*
+             * if a socket was bound with I/O completion port then
+             * GetQueuedCompletionStatus() would anyway return its status
+             * despite that WSASend() was already complete
+             */
 
             wev->active = 1;
             return in;
diff --git a/src/stream/ngx_stream_upstream_least_conn_module.c b/src/stream/ngx_stream_upstream_least_conn_module.c
index 677da45..c9719f9 100644
--- a/src/stream/ngx_stream_upstream_least_conn_module.c
+++ b/src/stream/ngx_stream_upstream_least_conn_module.c
@@ -254,7 +254,7 @@
                 / (8 * sizeof(uintptr_t));
 
         for (i = 0; i < n; i++) {
-             rrp->tried[i] = 0;
+            rrp->tried[i] = 0;
         }
 
         ngx_stream_upstream_rr_peers_unlock(peers);
diff --git a/src/stream/ngx_stream_upstream_round_robin.c b/src/stream/ngx_stream_upstream_round_robin.c
index efedb28..e1ab592 100644
--- a/src/stream/ngx_stream_upstream_round_robin.c
+++ b/src/stream/ngx_stream_upstream_round_robin.c
@@ -356,7 +356,7 @@
                 / (8 * sizeof(uintptr_t));
 
         for (i = 0; i < n; i++) {
-             rrp->tried[i] = 0;
+            rrp->tried[i] = 0;
         }
 
         ngx_stream_upstream_rr_peers_unlock(peers);