Comment 2 for bug 1260723

It looks the problem comes from here: https://github.com/openstack-dev/devstack/blob/master/stackrc#L60

actually with local.conf if there is a file localrc configured the credential are not sourced correctly.

I have push a fix but I don't know how is confiugred the gate the this will probably not correct the bug but can help to find it.
https://review.openstack.org/#/c/72315/