Updated openstack/openstack
Project: openstack/keystone  ff88763786a2d60e8c20774550ccae27b20b4c62
null
Add user_id when calling populate_roles_for_groups

The call to _populate_roles_for_groups was missing the user_id,
and was always defaulted to None.

closes bug: #1294781

Change-Id: Ic78c66a1cbd0a32630f7247f0176ced2de352921