Improve feedback loop
Improve feedback loop

The RPC differ can take a long time, and we don't know what's
happening, because it happens right at the start of the script.

This commit improves the usability of this script CLI by
informing the users of the actions taken.

rcbops/rpc-openstack,git-harry/rpc-openstack,jacobwagner/rpc-openstack,hughsaunders/rpc-openstack,mancdaz/rpc-openstack,jacobwagner/rpc-openstack,prometheanfire/rpc-openstack,git-harry/rpc-openstack,cloudnull/rpc-openstack,hughsaunders/rpc-openstack,major/rpc-openstack,BjoernT/rpc-openstack,robb-romans/rpc-openstack,galstrom21/rpc-openstack,galstrom21/rpc-openstack,robb-romans/rpc-openstack,BjoernT/rpc-openstack,major/rpc-openstack,cloudnull/rpc-openstack,cfarquhar/rpc-openstack,mancdaz/rpc-openstack,prometheanfire/rpc-openstack,rcbops/rpc-openstack,cfarquhar/rpc-openstack