Fixed issue: Page header in Check data integrity

- Added TypeHint
- Removed empty line
- Renamed Button 'Return to admin home' to 'Back'

application/controllers/admin/checkintegrity.php

@@ -36,13 +36,15 @@ public function __construct($controller, $id)
         Yii::app()->loadHelper('surveytranslator');
     }
 
+    /**
+     * @throws Exception
+     */
     public function index()
     {
         $aData = $this->_checkintegrity();
 
-
         $aData['fullpagebar']['returnbutton']['url'] = 'admin/index';
-        $aData['fullpagebar']['returnbutton']['text'] = gT('Return to admin home');
+        $aData['fullpagebar']['returnbutton']['text'] = gT('Back');
 
         $this->_renderWrappedTemplate('checkintegrity', 'check_view', $aData);
     }