Set return in setOptions function

library/Zend/File/Transfer/Adapter/Abstract.php

@@ -555,6 +555,7 @@ abstract class Zend_File_Transfer_Adapter_Abstract
      *
      * @param array $options Options to set
      * @param array $files   (Optional) Files to set the options for
+     * @return Zend_File_Transfer_Adapter_Abstract
      */
     public function setOptions($options = array(), $files = null) {
         $file = $this->_getFiles($files, false, true);