See https://gerrit.wikimedia.org/r/#/c/174619/
https://integration.wikimedia.org/ci/job/integration-config-tox-py27/414/console
```
12:20:54 ======================================================================
12:20:54 FAIL: test_zuul_project_in_gerrit.test_zuul_project_in_gerrit('mediawiki/extensions/FacebookOpenGraph',)
12:20:54 ----------------------------------------------------------------------
12:20:54 Traceback (most recent call last):
12:20:54 File "/mnt/jenkins-workspace/workspace/integration-config-tox-py27/.tox/py27/local/lib/python2.7/site-packages/nose/case.py", line 197, in runTest
12:20:54 self.test(*self.arg)
12:20:54 File "/mnt/jenkins-workspace/workspace/integration-config-tox-py27/tests/test_zuul_project_in_gerrit.py", line 34, in is_in_gerrit
12:20:54 assert zuul_project in GERRIT_REPOS
12:20:54 AssertionError
```
Last night, mediawiki/extensions/FacebookOpenGraph was deleted from Gerrit.