Updated openstack/openstack
Project: openstack/python-keystoneclient  d35bafa43c8bb436d4144a84cc23731617373d42
null
Sync openstack/common/memorycache.py with Oslo

This fixes an issue in Client.get(), where a dictionary was modified as we
iterated on its keys, which does not work in Python 3.

Change-Id: I37583504dcc672060a3d780dce46418baa32dd53