Updated openstack/openstack
Project: openstack-infra/devstack-gate  90807c8222db7b3c82f223ae66e4fe2c00e0129d
null
disable errexit for the test run phase of the script

we'd like to be able to control things with more granularity
towards the end of runs, not just blow up on errexit. So disable
this for the end of the runs before we go into tempest.

Change-Id: Ibe0e56f3ffd7d084d549562bcfd0069b32fef6df