Updated mediawiki/extensions
Project: mediawiki/extensions/CentralAuth  defded3e6c824086293cc0aae2d5dcd495ae1579

i18n tweaks

- "meta:Help:Unified login problems" is a redirect
- Add "Special:MyLanguage"
- Fix indentation

Change-Id: Ib29068081bcc6ebfaeb9dcf7f9c0a98230835650