update comment to match renamed class

Author: jwong-dayspring

NullBundle.php

@@ -7,8 +7,8 @@
 
 /**
  * this class is made to simulate bundle containing base structure so we can work with no bundle architecture used from s4+
- * Class AppBundle
- * @package App
+ * Class NullBundle
+ * @package Null
  */
 class NullBundle extends Bundle {
     const NAME = 'NullBundle';