zdtm.sh -b <commit>
* save a current head, rollback on <commit> and compile crtools
* execute a test and dump its processes
* checkout the current head and comple crtools
* restore test processes and check results
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>