vzifup-post: minor cleanups

(1) remove duplicate check for /proc/vz/veinfo

(2) move check for $1 up so in case argument is not supplied
    we exit before trying to source vps-functions and vz.conf

(3) Fix own name in usage() output -- just use $(basename $0)

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