Updated mediawiki/extensions
Project: mediawiki/extensions/Echo  940ea72ab570b544af7116153f11f9d67fc6cdea

Remove trailing whitespace, followup 0b1275b9e39b31b1f020ee90a8fb1134d0639c46

Change-Id: I1d48f9c3c0af68496bf0672c76202bf00063cb34