Updated openstack/openstack
Project: openstack/python-openstackclient  62a2083a785bcfac25b2b7e409e1c7e066f9edff

Fix ec2 credentials commands for new auth

These commands were not updated for the new authentication model.

Closes-Bug: 1399757

Change-Id: I5d4beb9d1fa6914fef5e4c7b459cdd967e614b24