Attached patch is just s/8 partitions/16 partitions/ .
To give a hint that our disklabel makes 16 partitions.
A note: both 8 & 16 partitions is handled by the kernel;
maybe also: currently the kernel read disklabel from
FreeBSD, NetBSD and OpenBSD i386/amd64.
Would be nice, but I'm not sure disklabel.8 is the right place.