Fixed spelling mistake in tests
Fixed spelling mistake in tests

Fixed a spelling mistake repeated several times in the
test_generic.py test file.

Change-Id: Ib4fc4cfc291d426250dd21b679770652b742dd69

redhat-openstack/manila,sajuptpm/manila,jcsp/manila,jcsp/manila,vponomaryov/manila,sajuptpm/manila,openstack/manila,bswartz/manila,redhat-openstack/manila,bswartz/manila,vponomaryov/manila,openstack/manila,weiting-chen/manila,weiting-chen/manila,scality/manila,NetApp/manila,scality/manila,NetApp/manila