vzctl snapshot-list: fix for VERBOSE>=1

In case VERBOSE is set to a value higher than zero,
vzctl snapshot-list ends up printing

	The ploop library has been loaded successfully

just before expected output, which might screw up some scripts.

To fix, set verbose to -1 to only print errors (which go to stderr).

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