Verify config support cinder on subpath

verify-config should support cinder running on a subpath.
Currently it doesn't because it strips the entire path from the
identity endpoint in the catalog when calculating the
unversioned endpoint. The fix is to only strip off the last part of
the path.

Change-Id: Ie8a0eeab1bf31887d6f37cf155b2d161ddfb172d
1 file changed