Add HISTORY and AUTHORS.

In https://minnie.tuhs.org/pipermail/tuhs/2020-January/019955.html ,
Brian Walden wrote (which looks like a reliable source to me):

"GWRL stands for Gottfried W. R. Luderer

Add HISTORY and AUTHORS.

In https://minnie.tuhs.org/pipermail/tuhs/2020-January/019955.html ,
Brian Walden wrote (which looks like a reliable source to me):

"GWRL stands for Gottfried W. R. Luderer, the author of cut(1) and
paste(1), probably around 1978. Those came either from PWB or USG,
as he worked with, or for, Berkley Tague. Thus they made their way
into AT&T commercial UNIX, first into System III and the into System
V, and that's why they are missing from early BSD releases as they
didn't get into Research UNIX until the 8th Edition.
[...]
I knew Dr. Luderer [...]
I also briefly worked for Berk when he was the department head
for 45263 in Whippany Bell Labs before moving to Murray Hill."

Omission pointed out by daniel@.
Joint work with jsg@.
OK jsg@ daniel@.

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Remove the nonsensical "-s - -" in the third example; quirk reported
by Redouan Ait Mallouk <raitmallouk at gmail dot com>.

The paste(1) utility allows two equivalent solutions for many tasks
involv

Remove the nonsensical "-s - -" in the third example; quirk reported
by Redouan Ait Mallouk <raitmallouk at gmail dot com>.

The paste(1) utility allows two equivalent solutions for many tasks
involving only one input stream; while here, make that more obvious
by always showing both solutions.

show more ...

add an EXIT STATUS section for /usr/bin;

bump the posix reference in STANDARDS to IEEE Std 1003.1-2008, with a few
updates to follow;

replace hardcoded exit values with .Ex macros;

ok jmc@

the ellipsis is not an optional argument; while here, sync the usage
and synopsis of commands

lots of good ideas by jmc@

ok jmc@

convert to new .Dd format;

- use a consistent text for STANDARDS
- note which options are extensions to POSIX

add an EXAMPLES section adapted from freebsd's page,
courtesy of ray lai;

Remove the advertising clause in the UCB license which Berkeley
rescinded 22 July 1999. Proofed by myself and Theo.

Change all option list specifications to ".Bl -tag -width Ds". Most man
pages just needed their -width parameter tweaked to "Ds", which provides
a nice width of 6 constant characters. For consistency

Change all option list specifications to ".Bl -tag -width Ds". Most man
pages just needed their -width parameter tweaked to "Ds", which provides
a nice width of 6 constant characters. For consistency more than anything.

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Various cleanups and standardization.

- remove trailing white space
- remove arguments from .Os macros
- remove arguments from .Nm macros, where appropriate
- some more Dq/Sq/Ql insanity
- still lots to do in the usr.bin tree... :/

usr.bin/ man page cleanups, n-s

rcsid

initial import of NetBSD tree