This should be done to prevent generating core files, if a process was
killed by SIGSEGV, SIGBUS, etc

https://bugzilla.openvz.org/show_bug.cgi?id=2655

Looks-good-to: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>