/**
* Return input from stdin.
- * @param $length Integer: the number of bytes to read. If null,
+ * @param $len Integer: the number of bytes to read. If null,
* just return the handle. Maintenance::STDIN_ALL returns
* the full length
* @return Mixed
* Do this inside a transaction
*
* @param $id Array of revision id values
- * @param $db Database class (needs to be a master)
+ * @param $dbw Database class (needs to be a master)
*/
private function deleteRevs( $id, &$dbw ) {
if ( !is_array( $id ) )