Updated mediawiki/extensions
Project: mediawiki/extensions/Interwiki  c6f84eee7ae83b45afb5cd3de207a18250651267

i18n: fix typo

- interwiki-local-description

Spotted by Guycn2
https://translatewiki.net/wiki/Thread:Support/MediaWiki:Interwiki-local-description/en

Change-Id: Iee362d609fb374ff3d6241146cada21194e34bad