has now has no effect except in combination with -p, and plain fsck
checks all file systems instead of skipping clean ones for msdosfs
only.
Renamed the force flag to skipclean and inverted its logic as in
fsck_ffs.
- Don't use errexit() to (mis)implement usage(). Using errexit() just
gave the bogus exit code 8.
- Fixed 3 other style bugs in usage().
fsck/fsutil.[ch]:
- Garbage-collected errexit(). It is essentially just one of NetBSD's
fsck_ext2fs error printing functions, but we don't have fsck_ext2fs
and the function is unsuitable for use there too (since pfatal() is
also used and it printf to a different stream).
