set the error level as default http error_log level

src/core/ngx_cycle.c

diff --git a/src/core/ngx_cycle.c b/src/core/ngx_cycle.c
index aa0d9ce..cdebf56 100644
--- a/src/core/ngx_cycle.c
+++ b/src/core/ngx_cycle.c
@@ -394,10 +394,6 @@
     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

diff --git a/src/core/ngx_log.c b/src/core/ngx_log.c
index cc38b02..a9221db 100644
--- a/src/core/ngx_log.c
+++ b/src/core/ngx_log.c
@@ -302,7 +302,10 @@
         }
     }
 
-    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;
     }