Updated openstack/openstack
Project: openstack/python-novaclient  30dd919f30a8e88f6c57a4107f629e7f5e187dee
null
Sync cliutils from oslo

In the process of unification of the clients code we should
reuse common functionality from Oslo.

Related to blueprint common-client-library-2

Change-Id: Ia5e4e60f07561849f75d88b8a2ea3d23d6d5ff6d