Updated openstack/openstack
Project: openstack/keystone  86a42f35e30b62f90504314b5294a9d0402c87ef

Expanded mutable hacking checks

Now that we don't need to support Python 2.6 we can easily add support
for sets, dict comprehensions and set comprehensions.

Change-Id: I7c25fbe4d3b42b2810034c7b30d6cc1beaea822b
Implements: bp remove-py26-hacks