Display commands when running reset-db
Display commands when running reset-db

Add a '-x' to reset-db, as the db_sync commands don't say what service
they are running for.

Change-Id: I0e33ac87f699361bd1d161f450b4f0ac1c524fb3

rdo-management/tripleo-image-elements,radez/tripleo-image-elements,openstack/tripleo-image-elements,radez/tripleo-image-elements,rdo-management/tripleo-image-elements,openstack/tripleo-image-elements