Updated openstack/openstack
Project: openstack/keystone  b649c762cb3f5e2249ac5183f68fd5ef8589f7d3

test REMOTE_USER  does not authenticate

if external (and all other methods) are missing  this test ensures
that  a request with REMOTE_USER set  that the token would come
through as unauthenticated

Change-Id: I08a0117773bd4efd8e220306de7ba82df73f7403