Issue #1684800 by nod_: JSHint drupal.js

core/misc/drupal.js

@@ -169,7 +169,6 @@ Drupal.formatString = function(str, args) {
         case '!':
           break;
         // Escaped and placeholder.
-        case '%':
         default:
           args[key] = Drupal.theme('placeholder', args[key]);
           break;