Updated openstack/openstack
Project: openstack-infra/devstack-gate  cd66e152671a6818ccf726f8d5ec175512c13212
null
be extra explicit for people reading logs

people seem to be confused by gate_hook failed, even though 5 lines
above we say running gate_hook. Make it extra explicit what to do
next.

Change-Id: I19d77b905c61311c0c68e23ed67f137df682cf34