[ZF-7311]Zend_Form_Element->removeDecorator returns $this but documented as boolean.

git-svn-id: http://framework.zend.com/svn/framework/standard/trunk@16859 44c647ce-9c0f-0410-b52a-842ac1e357ba

library/Zend/Form/Element.php

@@ -1860,7 +1860,7 @@ class Zend_Form_Element implements Zend_Validate_Interface
      * Remove a single decorator
      *
      * @param  string $name
-     * @return bool
+     * @return Zend_Form_Element
      */
     public function removeDecorator($name)
     {