master
fgen from NetBSD
Eduardo Horvath agreed to rescind clause 3 and 4 in NetBSD fgen.1 rev 1.9 cpu_in_cksum.S rev 1.2
Sync to latest from wiz at netbsd, needed for upcoming sparc64 bootblk changes; ok kettenis@
fix usage; Thomas Klausner will commit the same diff to NetBSD within the next hours, so our trees will remain as similar as possible.