Avoid dead link to the NVRAM FAQ in docs for sparc, too

Undo the .Ss2 quoting hack, the macros can now handle it.

More cleanup:
- simplify TOC handling and remove arg limit (from uwe)
- use Lk with explicit anchor text in some places
- do not allow official release builds when we can not derive the
proper date from the buildid

Quote long .Ss2 title to avoid troff's limitation.

Troff is limited to 9 macro parameters and this title is 10 words, so
we lose the last word here when we pass arguments around. We have
more titles like that but for now I wanted to commit only one just to
flag the problem.

branches: 1.27.16; 1.27.18;
- update upgrade issues:
+ ARM ABI change
+ new users
+ new groups
- add modules set where missing
- formatting improvements
- note that rtsol{,d} will be gone in the future
- fix raw partition info
- update sparc64 hardware support
- remove note about sparc SMP support being broken
- update some size requirements (still lots of ancient bogus RAM
minimums lingering -- HI PORTMASTERS!)
- various other minor content modernization
- whitespace fixes

branches: 1.26.26;
Various updates to the INSTALL notes in preparation for 5.0. Changes
are still to come.

branches: 1.25.2;
Note root partition size limitations on certain sparc and sparc64 models
(taken from the boot(8) manual pages).

branches: 1.24.2;
Suppress the whitespace after parenthesis.

Fix warnings.

branches: 1.22.10; 1.22.12; 1.22.20; 1.22.26; 1.22.30;
Mention that installer defaults to serial speed of 9600 8N1 and user might
want to pre-configure their system around that.
Closes PR 11946

branches: 1.21.2;
update minimum disk requirements

Replace "filesystem" with the correct phrase, "file system."

clean up whitespace and formatting

branches: 1.18.2;
add note about dead NVRAM (ethernet address is all F's) and link to FAQ

add section describing how to boot from an SBUS card
change ".Dl ok Ic commands" into ".(disp/.disp) and ".No ok Ic commands"
since it actually uses a monospaced font in HTML

s/Asumming/Assuming/

Some factual & typographical corrections on the SCSI target mapping topic.

fix some typos.

hardware: fix a couple of typos
add ross sparc 20 clone
a little more info on sw device

prep: mention that can't boot if root partition is past first 2 GB of disk
refine wording of section on scsi id mappings

install: add a little more info to the tape booting section

more work:
- use .Tn, .Bx, .Ul, .Key, .Sq, .Dq, .Li, .Dl, (etc) ... as appropriate
- be more consistent between various ports' install notes
- other cleanups

minor fixes,
added info on how sun4 models deal with scsi targets
some typos caught
add info on how to break from automatically booting (i.e. enter ROM prompt)

Major overhaul. Cleaned up a lot of explanations, clarified instructions,
provided more detail when necessary and removed extraneous instructions.

hardware: totally revamped to be more readable and include all known
supported hardware, now matches htdocs/Ports/sparc/hardware.html

install: new section on CD-ROM, netboot has instructions on setting up a
NetBSD server, removed disklabel instructions (miniroot/sysboot's
instructions are clear enough and have error-checking anyways)

prep: reorganized, put in cleaner explanation of SCSI target remapping on
OpenBOOT PROM 1 machines, put in instructions on how to figure out names
ROM uses for SCSI device, put in info about 100BaseTX network cards

upgrade: now points to ../common/upgrade

major terraform (this is MUCH more than a rototill :-), including:
- update for 1.5 (still more MD stuff to check)
- use new macros in ../common/macros as appropriate
- introduce some CONSISTENCY between the various ports' install docs
- use various mdoc macros as appropriate, including .Li, .Pa, .Sy, and .Ic.
- migrate more stuff into ../common/*
- whitespace cleanup
- lots of other little things i'm sure...

branches: 1.8.8;
truely -> truly; PR 7762

Markup for -mdoc and -mdoc2html.

RCS Id Police.

Mention ifconfig(8)'s `media' parameter instead of `link[01]'.

Update and clarifications (addresses PR#2933).

merge in 1.2 branch

branches: 1.2.6;
Start documenting 1.1 installation.

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