Updated mediawiki/extensions
Project: mediawiki/extensions/EditSubpages  745c3251c3451e7efbe6385cd964907646b90610

i18n: consistency tweaks

- Replace http by https
- Add Special:MyLanguage

Spotted by Siebrand
https://translatewiki.net/wiki/Thread:Support/About_MediaWiki:Unlockedpages/en

Change-Id: Ic48fa703a02cfccde2801530d7b2c6f48a8916a8