Comment 0 for bug 1415795

Introduced by https://review.openstack.org/#/c/142967/

auth_host is now left at "keystonehost" which cannot be resolved.
Sample logs at http://dd6b71949550285df7dc-dda4e480e005aaa13ec303551d2d8155.r49.cf1.rackcdn.com/67/142967/8/4654/results.html

In particular note screen-s-proxy.txt.gz which errors with:
Unable to establish connection to http://keystonehost:35357