# HG changeset patch
# User Ruslan Ermilov <ru@nginx.com>
# Date 1520436492 -10800
# Node ID 0b1eb40de6da32196b21d1ed086f7030c10b40d2
# Parent  e80930e5e4229d4398338e186fed1a5f703fb7f4
Improved code readablity.

No functional changes.

diff --git a/src/http/ngx_http_variables.c b/src/http/ngx_http_variables.c
--- a/src/http/ngx_http_variables.c
+++ b/src/http/ngx_http_variables.c
@@ -429,7 +429,9 @@ ngx_http_add_variable(ngx_conf_t *cf, ng
             return NULL;
         }
 
-        v->flags &= flags | ~NGX_HTTP_VAR_WEAK;
+        if (!(flags & NGX_HTTP_VAR_WEAK)) {
+            v->flags &= ~NGX_HTTP_VAR_WEAK;
+        }
 
         return v;
     }
@@ -494,7 +496,9 @@ ngx_http_add_prefix_variable(ngx_conf_t 
             return NULL;
         }
 
-        v->flags &= flags | ~NGX_HTTP_VAR_WEAK;
+        if (!(flags & NGX_HTTP_VAR_WEAK)) {
+            v->flags &= ~NGX_HTTP_VAR_WEAK;
+        }
 
         return v;
     }
diff --git a/src/stream/ngx_stream_variables.c b/src/stream/ngx_stream_variables.c
--- a/src/stream/ngx_stream_variables.c
+++ b/src/stream/ngx_stream_variables.c
@@ -161,7 +161,9 @@ ngx_stream_add_variable(ngx_conf_t *cf, 
             return NULL;
         }
 
-        v->flags &= flags | ~NGX_STREAM_VAR_WEAK;
+        if (!(flags & NGX_STREAM_VAR_WEAK)) {
+            v->flags &= ~NGX_STREAM_VAR_WEAK;
+        }
 
         return v;
     }
@@ -227,7 +229,9 @@ ngx_stream_add_prefix_variable(ngx_conf_
             return NULL;
         }
 
-        v->flags &= flags | ~NGX_STREAM_VAR_WEAK;
+        if (!(flags & NGX_STREAM_VAR_WEAK)) {
+            v->flags &= ~NGX_STREAM_VAR_WEAK;
+        }
 
         return v;
     }