vzmigrate: ability to run verbose ploop copy

In case -vv is specified, run ploop -vvvv copy. This will print
ploop timings in case ploop is compiled with timings profiling
(see http://git.openvz.org/?p=ploop;a=commitdiff;h=9e4aa564fc40)

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