Merge pull request #12063 from ZDroid/tc

Drop trailling comma

Gruntfile.js

@@ -189,7 +189,7 @@ module.exports = function (grunt) {
         },
         files: {
           'dist/css/<%= pkg.name %>.css': ['dist/css/<%= pkg.name %>.css'],
-          'dist/css/<%= pkg.name %>-theme.css': ['dist/css/<%= pkg.name %>-theme.css'],
+          'dist/css/<%= pkg.name %>-theme.css': ['dist/css/<%= pkg.name %>-theme.css']
         }
       }
     },