vzctl: allocate a device name dynamically

Before this patch a device name has been limited by 32 symbols
Now we want add input device for exmple:
/dev/input/by-path/pci-0000:00:12.0-usb-0:3:1.1-event

Signed-off-by: Andrey Vagin <avagin@openvz.org>
3 files changed