Updated mediawiki/extensions
Project: mediawiki/extensions/Flow  7e8b5add53787bac468e5d7080876386788ea8f7

Hygiene: fix feedback from scrutinizer #2

I ran scrutinizer-ci.com against flow - these are some of the things it came up
with.

https://scrutinizer-ci.com/g/matthiasmullie/mediawiki-extensions-Flow/inspections/d37be56d-1a25-4c3c-8f2e-f47fc8f3c403/patches

Change-Id: I254178383747c443d511a719e7fc170c08014110