vzlist: do not exit with 1 if there are no CTs

... unless a user have specified CTID(s) explicitly.

http://bugzilla.openvz.org/2149

Reported-by: Ilja Livenson <lja.livenson@gmail.com>
Signed-off-by: Kir Kolyshkin <kir@openvz.org>
1 file changed