Updated openstack/openstack
Project: openstack/horizon  0239453e9e2b7b7032e396594ce6f3128847c825

Creating a new user with an existing user name

Change error message when we create a new user
with an existing user name.

Change-Id: I795c04672a3c625be074c8af78eb169436ac3895
Closes-Bug: #1404432