style fix: remove tabs and trailing spaces

src/core/ngx_open_file_cache.c

diff --git a/src/core/ngx_open_file_cache.c b/src/core/ngx_open_file_cache.c
index baf546f..d9ec188 100644
--- a/src/core/ngx_open_file_cache.c
+++ b/src/core/ngx_open_file_cache.c
@@ -413,13 +413,13 @@
 
         if (file->count == 0) {
 
-	    if (file->fd != NGX_INVALID_FILE) {
-		if (ngx_close_file(file->fd) == NGX_FILE_ERROR) {
-		    ngx_log_error(NGX_LOG_ALERT, pool->log, ngx_errno,
-				  ngx_close_file_n " \"%s\" failed",
+            if (file->fd != NGX_INVALID_FILE) {
+                if (ngx_close_file(file->fd) == NGX_FILE_ERROR) {
+                    ngx_log_error(NGX_LOG_ALERT, pool->log, ngx_errno,
+                                  ngx_close_file_n " \"%s\" failed",
                                   file->name);
-		}
-	    }
+                }
+            }
 
             ngx_free(file->name);
             ngx_free(file);

src/core/ngx_resolver.c

diff --git a/src/core/ngx_resolver.c b/src/core/ngx_resolver.c
index a5b8efb..a7fe056 100644
--- a/src/core/ngx_resolver.c
+++ b/src/core/ngx_resolver.c
@@ -202,7 +202,7 @@
         ngx_queue_remove(&rn->queue);
 
         for (ctx = rn->waiting; ctx; ctx = next) {
-            next = ctx->next; 
+            next = ctx->next;
 
             if (ctx->event) {
                 ngx_resolver_free(r, ctx->event);

src/http/ngx_http_core_module.c

diff --git a/src/http/ngx_http_core_module.c b/src/http/ngx_http_core_module.c
index f57db36..cb9eb14 100644
--- a/src/http/ngx_http_core_module.c
+++ b/src/http/ngx_http_core_module.c
@@ -2922,7 +2922,7 @@
                 return NGX_CONF_ERROR;
             }
         }
- 
+
         conf->resolver = prev->resolver;
     }
 

src/os/unix/ngx_posix_config.h

diff --git a/src/os/unix/ngx_posix_config.h b/src/os/unix/ngx_posix_config.h
index ae6f70f..ec7ee94 100644
--- a/src/os/unix/ngx_posix_config.h
+++ b/src/os/unix/ngx_posix_config.h
@@ -110,7 +110,7 @@
 
 #include <sys/param.h>          /* ALIGN() */
 
-/* 
+/*
  * FreeBSD 3.x has no CMSG_SPACE() and CMSG_LEN() and has the broken CMSG_DATA()
  */