Updated mediawiki/extensions
Project: mediawiki/extensions/MobileFrontend  9717d8850bc42741bfed9a00ae1f9853f8c5d33e

Fix pre-review hook once and for all

Don't rely on a regex to get the project name from git. Just specify
project name in the script instead. Replace a cryptic "O=1" with
"o=LABELS". [1]

Also, if Gerrit API returns no changes (which is very unlikely), show
a warning message.

[1] http://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#list-changes
Change-Id: Iec52501dfc6ffc84546fbf0d2fd41131a706e07d