Updated mediawiki/extensions
Project: mediawiki/extensions/ParserFunctions  cab5a3310ed7e573900d4492d0d4932066efa035

mb_substr() expects parameter 2 to be long, string given

Adding missing intval as suggested in bug 51834

Bug: 51834
Change-Id: I0bc8d612dc52d32e2cd616325e800b95c4efa23f