vzmigrate: fix rsync2 and disk quota times if quota is off

Otherwise we have weird times for 2nd-level quota and second rsync.

	2nd level quota: -1.33772e+09

After this patch, 2nd level quota time should be close to zero.

Second rsync time in ploop case still needs to be fixed.

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