o Remove All Rights Reserved from my notices
o imp@FreeBSD.org everywhere
o regularize punctiation, eliminate date ranges
o Make sure that it's clear that I don't claim All Rights reserved by listing
All Rights Reserved on same line as other copyright holders (but not
me). Other such holders are also listed last where it's clear.
More work likely needs to happen. This describes things better than
the old "this man page intentionally left blank" style man page that
I'd committed previously.
Nitpickers: comb nits and commit!