set the error level as default http error_log level

src/core/ngx_cycle.c

@@ -394,10 +394,6 @@ ngx_init_cycle(ngx_cycle_t *old_cycle)
     cycle->log = cycle->new_log;
     pool->log = cycle->new_log;
 
-    if (cycle->log->log_level == 0) {
-        cycle->log->log_level = NGX_LOG_ERR;
-    }
-
 
     /* create shared memory */
 

src/core/ngx_log.c

@@ -302,7 +302,10 @@ ngx_set_error_log_levels(ngx_conf_t *cf, ngx_log_t *log)
         }
     }
 
-    if (log->log_level == NGX_LOG_DEBUG) {
+    if (log->log_level == 0) {
+        log->log_level = NGX_LOG_ERR;
+
+    } else if (log->log_level == NGX_LOG_DEBUG) {
         log->log_level = NGX_LOG_DEBUG_ALL;
     }