Updated openstack/openstack
Project: openstack/tempest  940b1a5edd06fefa1a23c68e6262b8a9e18db317

olso log sync

The oslo log fix to actually print out CRITICAL exceptions
is needed to debug tempest/javelin2 in any real way.

Change-Id: I5a91cff829fec268ebf9c01a5fe84225e4fe72d1