tx init run without options expects one interactive value to be set.
Specify this host value with a command line option so that tx init can
run non interactively.
Change-Id: Ifc90fdefc0089924ee769cc1dc5db16f9e6a8804
Reviewed-on: https://review.openstack.org/12803
Approved: Clark Boylan <clark.boylan@gmail.com>
Reviewed-by: Clark Boylan <clark.boylan@gmail.com>
Tested-by: Jenkins