vzlist: fix showing disk usage for mounted CTs

In case a container is mounted (and quota is enabled for it),
its diskspace/diskinodes usage is well known from /proc/vz/vzquota.
But because of status == VE_RUNNING check in PRINT_DQ the usage
is now shown.

Fix it by replacing the "is running" checking to "is usage==0".

Signed-off-by: Kir Kolyshkin <kir@openvz.org>
1 file changed