vzlist: fix showing DISABLED

As pointed out in bug #3029, vzlist showing DISABLED=yes
if DISABLED=no is set in CT config.

As DISABLED is actually a tri-state value (yes/no/unset),
we need to check for YES value explicitly.

https://bugzilla.openvz.org/3029

Reported-by: Kevin Holly <root@hallowe.lt>
Signed-off-by: Kir Kolyshkin <kir@openvz.org>
1 file changed