Make this test case more robust (and faster) by using the CLI to control backend health, rather than rely on probes.
Make this test case more robust (and faster) by using the
CLI to control backend health, rather than rely on probes.

Submitted by:	Federico G. Schwindt

ssm/pkg-varnish,ssm/pkg-varnish,ssm/pkg-varnish,ssm/pkg-varnish,ssm/pkg-varnish