New interface, new smoke test.
Signed-off-by: NJohn Snow <jsnow@redhat.com>
Reviewed-by: NVladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: NEric Blake <eblake@redhat.com>
Message-Id: <20181221093529.23855-12-jsnow@redhat.com>
[eblake: fix last-minute change to echo text]
Signed-off-by: NEric Blake <eblake@redhat.com>