parse_{chkpnt,restore}_opt: don't print error twice

We don't have to print an error about invalid option,
as this is already done by getopt_long().

Before this patch it worked like this:

	# vzctl restore 9990 -x
	vzctl: invalid option -- 'x'
	Invalid option -?

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