order of user list appears inconsistent

This appeared as a transient failure in a doc change. I suspect the test shouldn't bother asserting the order of the results, only that the expected values appear in the list.

======================================================================
FAIL: keystone.tests.test_v2_controller.TenantTestCase.test_get_project_users_no_user
tags: worker-1
----------------------------------------------------------------------
Empty attachments:
  pythonlogging:''-1
  stderr
  stdout

pythonlogging:'': {{{
Adding cache-proxy 'keystone.tests.test_cache.CacheIsolatingProxy' to backend.
KVS region configuration for token-driver: {'keystone.kvs.arguments.distributed_lock': True, 'keystone.kvs.backend': 'openstack.kvs.Memory', 'keystone.kvs.arguments.lock_timeout': 6}
Using default dogpile sha1_mangle_key as KVS region token-driver key_mangler
It is recommended to only use the base key-value-store implementation for the token driver for testing purposes. Please use keystone.token.backends.memcache.Token or keystone.token.backends.sql.Token instead.
KVS region configuration for os-revoke-driver: {'keystone.kvs.arguments.distributed_lock': True, 'keystone.kvs.backend': 'openstack.kvs.Memory', 'keystone.kvs.arguments.lock_timeout': 6}
Using default dogpile sha1_mangle_key as KVS region os-revoke-driver key_mangler
Callback: `keystone.contrib.revoke.core.Manager._trust_callback` subscribed to event `identity.OS-TRUST:trust.deleted`.
Callback: `keystone.contrib.revoke.core.Manager._consumer_callback` subscribed to event `identity.OS-OAUTH1:consumer.deleted`.
Callback: `keystone.contrib.revoke.core.Manager._access_token_callback` subscribed to event `identity.OS-OAUTH1:access_token.deleted`.
Callback: `keystone.contrib.revoke.core.Manager._role_callback` subscribed to event `identity.role.deleted`.
Callback: `keystone.contrib.revoke.core.Manager._user_callback` subscribed to event `identity.user.deleted`.
Callback: `keystone.contrib.revoke.core.Manager._user_callback` subscribed to event `identity.user.disabled`.
Callback: `keystone.contrib.revoke.core.Manager._project_callback` subscribed to event `identity.project.deleted`.
Callback: `keystone.contrib.revoke.core.Manager._project_callback` subscribed to event `identity.project.disabled`.
Callback: `keystone.contrib.revoke.core.Manager._domain_callback` subscribed to event `identity.domain.disabled`.
found extension EntryPoint.parse('qpid = oslo.messaging._drivers.impl_qpid:QpidDriver')
found extension EntryPoint.parse('zmq = oslo.messaging._drivers.impl_zmq:ZmqDriver')
found extension EntryPoint.parse('kombu = oslo.messaging._drivers.impl_rabbit:RabbitDriver')
found extension EntryPoint.parse('rabbit = oslo.messaging._drivers.impl_rabbit:RabbitDriver')
found extension EntryPoint.parse('fake = oslo.messaging._drivers.impl_fake:FakeDriver')
found extension EntryPoint.parse('log = oslo.messaging.notify._impl_log:LogDriver')
found extension EntryPoint.parse('messagingv2 = oslo.messaging.notify._impl_messaging:MessagingV2Driver')
found extension EntryPoint.parse('noop = oslo.messaging.notify._impl_noop:NoOpDriver')
found extension EntryPoint.parse('routing = oslo.messaging.notify._impl_routing:RoutingDriver')
found extension EntryPoint.parse('test = oslo.messaging.notify._impl_test:TestDriver')
found extension EntryPoint.parse('messaging = oslo.messaging.notify._impl_messaging:MessagingDriver')
User 70bb7abd662a42c4b906cfc16c907fcf in project bar doesn't exist.
}}}

Traceback (most recent call last):
  File "keystone/tests/test_v2_controller.py", line 61, in test_get_project_users_no_user
    self.assertEqual(orig_project_users, new_project_users)
  File "/home/jenkins/workspace/gate-keystone-python27/.tox/py27/local/lib/python2.7/site-packages/testtools/testcase.py", line 321, in assertEqual
    self.assertThat(observed, matcher, message)
  File "/home/jenkins/workspace/gate-keystone-python27/.tox/py27/local/lib/python2.7/site-packages/testtools/testcase.py", line 406, in assertThat
    raise mismatch_error
MismatchError: !=:
reference = {'users': [{'email': '<email address hidden>',
            'enabled': True,
            'id': 'd00764bbd27f478c8321af4fcd1428fb',
            'name': 'FOO',
            'username': 'FOO'},
           {'email': '<email address hidden>',
            'enabled': True,
            'id': 'ee5f3d2c210e481198f68b0b53518838',
            'name': 'SNA',
            'username': 'SNA'}]}
actual = {'users': [{'email': '<email address hidden>',
            'enabled': True,
            'id': 'ee5f3d2c210e481198f68b0b53518838',
            'name': 'SNA',
            'username': 'SNA'},
           {'email': '<email address hidden>',
            'enabled': True,
            'id': 'd00764bbd27f478c8321af4fcd1428fb',
            'name': 'FOO',
            'username': 'FOO'}]}