Updated mediawiki/extensions
Project: mediawiki/extensions/WikimediaIncubator  1ae05653037dfa6b1db30e553b2cda258cb7135c

Standardize indentation of en.json

The indentation used on en.json (4 spaces) is not consistant with
the indentation on other json files (tab). This change fixes the
inconsistancy.

Change-Id: I835325c50f54ce40fca7754fa3636c70ca78c402