1) dir.c: get byte order right in mkentry()
2) pass1.c: When doing -c2 conversion, do secsize reads for a symlink -
not doing so was causing the conversion to fail because the device
driver can't deal with short reads.
preen (-p), and in that case the filesystem is skipped if it is clean.
A new flag "-f" for 'force' has been added which basically gives back
the old behavior of checking all the filesystems all the time. This
very closely models the behavior of SunOS and Ultrix.
