Updated mediawiki/extensions
Project: mediawiki/extensions/RevisionCommentSupplement  778c50d8c99dd26e4e524a9d81a73a6f6045faa3

i18n: reword messages

* revcs-hidehistory-success
* revcs-delete-success

Spotted by Siebrand
https://translatewiki.net/wiki/Thread:Support/About_MediaWiki:Revcs-hidehistory-success/en

Change-Id: I8eedac6ab9973d7f300a866ecea8c69b36fda9ba