Don't render 'Enabled by:' for flags which are not part of any flag group

Author: jhrcek

message-index/site.hs

@@ -274,7 +274,9 @@ flagSetFields =
           _ -> noResult "",
       field "flag_group" $ \_me -> do
         flagInfo >>= \case
-          Just (_, g) -> return $ unwords g
+          -- Don't render flag_group field for flags which are not member of any flag group (like -Wall)
+          Just (_, []) -> noResult ""
+          Just (_, groups) -> return $ unwords groups
           Nothing -> return ""
     ]
 

message-index/templates/message.html

@@ -4,7 +4,9 @@
   $if(on_by_default)$
   <i>Enabled by default</i>
   $else$
-  <i>Enabled by: <code>$flag_group$</code></i>
+      $if(flag_group)$
+      <i>Enabled by: <code>$flag_group$</code></i>
+      $endif$
   $endif$
 </p>
 $endif$