Added missing $this return in Zend_Controller_Action_Helper_Cache

git-svn-id: http://framework.zend.com/svn/framework/standard/trunk@20534 44c647ce-9c0f-0410-b52a-842ac1e357ba

library/Zend/Controller/Action/Helper/Cache.php

@@ -173,6 +173,7 @@ class Zend_Controller_Action_Helper_Cache
     public function setManager(Zend_Cache_Manager $manager)
     {
         $this->_manager = $manager;
+        return $this;
     }
 
     /**