Use argument for heat-admin key copy source
Use argument for heat-admin key copy source

We are passing the undercloud IP as the first argument
so unless you already have undercloud-root as a designator
in the current default ~/.ssh/config, the last scp command
will fail, and you will not be able to go through the
proxy and onto the backend overcloud hosts.

Change-Id: I09c944352bc8712d67c923a5f4565f7ec4ee60f4

jkilpatr/browbeat,jkilpatr/browbeat,jtaleric/browbeat,jtaleric/browbeat