change ngx_log_create_errlog() interface

src/core/ngx_log.c

diff --git a/src/core/ngx_log.c b/src/core/ngx_log.c
index 2099640..58e1b08 100644
--- a/src/core/ngx_log.c
+++ b/src/core/ngx_log.c
@@ -303,18 +303,9 @@
 
 
 ngx_log_t *
-ngx_log_create_errlog(ngx_cycle_t *cycle, ngx_array_t *args)
+ngx_log_create_errlog(ngx_cycle_t *cycle, ngx_str_t *name)
 {
     ngx_log_t  *log;
-    ngx_str_t  *value, *name;
-
-    if (args) {
-        value = args->elts;
-        name = &value[1];
-
-    } else {
-        name = NULL;
-    }
 
     log = ngx_pcalloc(cycle->pool, sizeof(ngx_log_t));
     if (log == NULL) {

src/core/ngx_log.h

diff --git a/src/core/ngx_log.h b/src/core/ngx_log.h
index 5168cd8..ebdf707 100644
--- a/src/core/ngx_log.h
+++ b/src/core/ngx_log.h
@@ -196,7 +196,7 @@
 /*********************************/
 
 ngx_log_t *ngx_log_init(void);
-ngx_log_t *ngx_log_create_errlog(ngx_cycle_t *cycle, ngx_array_t *args);
+ngx_log_t *ngx_log_create_errlog(ngx_cycle_t *cycle, ngx_str_t *name);
 char *ngx_set_error_log_levels(ngx_conf_t *cf, ngx_log_t *log);
 void ngx_log_abort(ngx_err_t err, const char *text, void *param);
 void ngx_cdecl ngx_log_stderr(ngx_err_t err, const char *fmt, ...);

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 26f24b3..3162d39 100644
--- a/src/http/ngx_http_core_module.c
+++ b/src/http/ngx_http_core_module.c
@@ -4101,7 +4101,11 @@
 {
     ngx_http_core_loc_conf_t *lcf = conf;
 
-    lcf->err_log = ngx_log_create_errlog(cf->cycle, cf->args);
+    ngx_str_t  *value;
+
+    value = cf->args->elts;
+
+    lcf->err_log = ngx_log_create_errlog(cf->cycle, &value[1]);
     if (lcf->err_log == NULL) {
         return NGX_CONF_ERROR;
     }