Updated openstack/openstack
Project: openstack/keystone  66ec5d59e1b7c0a1c9b9113f06af75863f170ebd

assignment controller error path fix

Assignment controller error path code updated to reflect a change in the
dictionary format.

Closes-Bug: #1359376

Change-Id: I5358f8d61b60ea853fb4e2af0b05031a25c4ae6d