@@ -268,7 +268,7 @@ protected static function ensureIntlExtensionIsInstalled()
         $caller = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 2)[1]['function'];
 
         if (! extension_loaded('intl')) {
-            throw new RuntimeException('The "intl" PHP extension is required to use the method: ' . $caller);
+            throw new RuntimeException('The "intl" PHP extension is required to use the method: '.$caller);
         }
     }
 }