Updated openstack/openstack
Project: openstack/nova  3d84df312c7d27a237e3fe5df87d056206801a2c

remove scary error message in tox

Found an interesting cantrip in the devstack tox.ini that gets rid of
the scary can't find bash error message at the beginning of test
runs. Reducing non error looking error things make it easier to see
real errors.

Change-Id: I4e1b826626063bf8d5a15531f5768f9ce0eea6a5