/**
* @see FileBackendStore::__construct()
- * Additional $config params include:
+ * @param array $config Params include:
* - swiftAuthUrl : Swift authentication server URL
* - swiftUser : Swift user used by MediaWiki (account:username)
* - swiftKey : Swift authentication key for the above user
*
* @param string $fullCont Resolved container name
* @param string $dir Resolved storage directory with no trailing slash
- * @param string|null $after Resolved container relative path to list items after
+ * @param string|null &$after Resolved container relative path to list items after
* @param int $limit Max number of items to list
* @param array $params Parameters for getDirectoryList()
* @return array List of container relative resolved paths of directories directly under $dir
*
* @param string $fullCont Resolved container name
* @param string $dir Resolved storage directory with no trailing slash
- * @param string|null $after Resolved container relative path of file to list items after
+ * @param string|null &$after Resolved container relative path of file to list items after
* @param int $limit Max number of items to list
* @param array $params Parameters for getDirectoryList()
* @return array List of resolved container relative paths of files under $dir
*
* @param string $container Resolved container name
* @param string $dir Resolved path relative to container
- * @param string $after
+ * @param string &$after
* @param int $limit
* @param array $params
* @return Traversable|array