diff --git a/core/modules/config_translation/src/FormElement/DateFormat.php b/core/modules/config_translation/src/FormElement/DateFormat.php
index 53f72ff..b541108 100644
--- a/core/modules/config_translation/src/FormElement/DateFormat.php
+++ b/core/modules/config_translation/src/FormElement/DateFormat.php
@@ -48,7 +48,7 @@ public function getFormAttributes() {
     return array(
       '#attached' => array(
         'library' => array('system/drupal.system.date'),
-      )
+      ),
     );
   }
 
diff --git a/core/modules/system/js/system.date.js b/core/modules/system/js/system.date.js
index ad3c60a..98bb96e 100644
--- a/core/modules/system/js/system.date.js
+++ b/core/modules/system/js/system.date.js
@@ -22,7 +22,7 @@
       /**
        * Event handler that replaces date characters with value.
        *
-       * @param e
+       * @param Object e
        */
       function dateFormatHandler(e) {
         var baseValue = $(e.target).val() || '';