Add some references, most of these were removed when we stopped building
and installing USD/SMM/PSD docs.

jmc@ agrees with the direction, ok millert@ on an earlier diff

those tempfiles no longer have names
okay millert@

it should not be necessary for yacc to use TMPDIR, /tmp is good enough.
ok beck deraadt guenther

The .Nd macro is intended to provide "a one line description", so avoid
multiple lines of input, in particular, don't use macros below .Nd;
such bad style can confuse various apropos(1) tools. All d

The .Nd macro is intended to provide "a one line description", so avoid
multiple lines of input, in particular, don't use macros below .Nd;
such bad style can confuse various apropos(1) tools. All deleted
macros reappear later in the text, anyway, except for .Tn, which i'm
deleting outright.
Found while scanning the tree for good and bad practices in preparation
for my EuroBSD2015 mdoc(7) tutorial on Oct 1 in Stockholm.

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TMPDIR is an extension;

clean up macro usage in the HISTORY section;
triggered by a smaller patch from Jan Stary <hans at stare dot cz>

bit more info for the toplas article;
From: Jan Stary
tweaked a bit by myself

add the lalr paper;
from jan stary

remove references to now removed usd/psd/smm docs;

add an EXIT STATUS section for /usr/bin;

more HISTORY; from daniel dickman

daniel dickman has folded the relevant bits of the files being removed
into yacc.1 - thanks!

ok millert deraadt

STANDARDS:
mark these utilities as being either optional (SD/FR/UP); or as
being compliant only with XPG4 (XSI); strip.1 and talk.1 are tweaked
purely for consistency;

thanks otto for feedback

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

documentation tweaks.

ok (some time ago) jmc@

convert to new .Dd format;

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

xref yacc psd. ok millert@

- section reorder
- COMPATIBILITY merge
- macro cleanup
- kill whitespace at EOL
- new sentence, new line

ssh pages ok markus@

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rescinded 22 July 1999.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

Remove completely redundant introductory sentences in ENVIRONMENT sections.

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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Insert more missing .El directives. Our troff really should identify these and
spit out a warning.

More pedantic man page formatting insanity, lalala

Finish off cleanup usr.bin/ man pages.