1a6840cdce
fsck_msdosfs: Assorted fixes from other BSDs. When truncating cluster chains fix the length of the cluster head. http://marc.info/?t=140304310700005&r=1&w=2 Avoid infinite loops in cluster chain linked lists. http://marc.info/?l=openbsd-tech&m=140275150804337&w=2 Avoid off-by-one on FAT12 filesystems. http://marc.info/?l=openbsd-tech&m=140234174104724&w=2 Obtained from: NetBSD (from OpenBSD)