Fix typo in cinder/tests/unit/image/test_glance.py
Fix typo in cinder/tests/unit/image/test_glance.py

TrivialFix

Change-Id: Ibc945be670065dac49b01e9844fcb39ec30f0fba

phenoxim/cinder,eharney/cinder,Datera/cinder,NetApp/cinder,NetApp/cinder,Nexenta/cinder,eharney/cinder,ge0rgi/cinder,j-griffith/cinder,openstack/cinder,Nexenta/cinder,phenoxim/cinder,mahak/cinder,openstack/cinder,cloudbase/cinder,Hybrid-Cloud/cinder,Datera/cinder,Hybrid-Cloud/cinder,j-griffith/cinder,cloudbase/cinder,mahak/cinder