[GENERIC]: fix incorrect phpDoc

git-svn-id: http://framework.zend.com/svn/framework/standard/trunk@21383 44c647ce-9c0f-0410-b52a-842ac1e357ba

library/Zend/Barcode/Renderer/RendererAbstract.php

@@ -80,7 +80,7 @@ abstract class Zend_Barcode_Renderer_RendererAbstract
 
     /**
      * Barcode object
-     * @var Zend_Barcode_Object
+     * @var Zend_Barcode_Object_ObjectAbstract
      */
     protected $_barcode;