Updated openstack/openstack
Project: openstack/keystone  3f62c990d2f505d45e07edd909e8f1952ede3197
null
Removes the use of mutables as default args

Automatic enforcement of this rule is added in:
https://review.openstack.org/78119

bp more-code-style-automation

Change-Id: I184105a456e9beae3cb3d6716b974ba52ef8bdad