Updated mediawiki/extensions
Project: mediawiki/extensions/BetaFeatures  8e21df4f9e736d2243e000ce5c612f2e78a3529e

Tabs for indentation

Follow up to I1c72aaa3f847b1b7679113f2b88cbb92adf0f936

Change-Id: I9e51c1cf141e027d326d376ace912d9f6478532f