[nginx] Improved code readablity.

[Ruslan Ermilov]

details:   http://hg.nginx.org/nginx/rev/0b1eb40de6da
branches:  
changeset: 7226:0b1eb40de6da
user:      Ruslan Ermilov <ru at nginx.com>
date:      Wed Mar 07 18:28:12 2018 +0300
description:
Improved code readablity.

No functional changes.

diffstat:

 src/http/ngx_http_variables.c     |  8 ++++++--
 src/stream/ngx_stream_variables.c |  8 ++++++--
 2 files changed, 12 insertions(+), 4 deletions(-)

diffs (50 lines):

diff -r e80930e5e422 -r 0b1eb40de6da src/http/ngx_http_variables.c
--- a/src/http/ngx_http_variables.c	Mon Mar 05 21:35:13 2018 +0300
+++ b/src/http/ngx_http_variables.c	Wed Mar 07 18:28:12 2018 +0300
@@ -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 -r e80930e5e422 -r 0b1eb40de6da src/stream/ngx_stream_variables.c
--- a/src/stream/ngx_stream_variables.c	Mon Mar 05 21:35:13 2018 +0300
+++ b/src/stream/ngx_stream_variables.c	Wed Mar 07 18:28:12 2018 +0300
@@ -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;
     }