* @param $log_id int: log_id of the change to add the tags to
* @param $params String: params to put in the ct_params field of tabel 'change_tag'
*
+ * @throws MWException
* @return bool: false if no changes are made, otherwise true
*
* @exception MWException when $rc_id, $rev_id and $log_id are all null
* @param $conds String|Array: conditions used in query, see DatabaseBase::select
* @param $join_conds Array: join conditions, see DatabaseBase::select
* @param $options Array: options, see Database::select
- * @param $filter_tag String: tag to select on
- *
- * @exception MWException when unable to determine appropriate JOIN condition for tagging
+ * @param bool|string $filter_tag Tag to select on
*
+ * @throws MWException When unable to determine appropriate JOIN condition for tagging
*/
static function modifyDisplayQuery( &$tables, &$fields, &$conds,
&$join_conds, &$options, $filter_tag = false ) {