cmd is declarated in parasite-head-x86-64.S
__export_parasite_cmd:
        .long 0

Its size is 4 bytes, so it should be int instead of long.

This patch fixes a bug in parasite execute,
where a part of args are overwritten by cmd.

memcpy(ctl->addr_cmd, &cmd, sizeof(cmd));
Reported-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Acked-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>