Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  c68fc800faac255b7e8a9ad68b659954525f3918

Fix typo

Spotted by Toliño
https://translatewiki.net/wiki/Thread:Translating_talk:MediaWiki/About_MediaWiki:Wikibase-listdatatypes-wikibase-item-body/en

Change-Id: I1b71e462f22e34ce919a525d21f5b82948bad690