Use inline cross-references.

fix cross references

branches: 1.14.2;
remove npx(4) and references to it. bump dates for reference removal.

This used to refer to x87 support for x86 machines.

npx isn't really a driver any more. we don't support x86 hardware
without an FPU, and we don't call it by that name in the code or
attach it as npx at something.

brought up on tech-kern. unfortunately the copy to port-i386 disappeared
in a spam filter.

branches: 1.13.26;
New sentence, new line.

Convert TNF licenses to new 2 clause variant

branches: 1.11.32; 1.11.34;
Mention various *VERBOSE kernel options in the corresponding man pages.
From Julio Merino in misc/17637.
Bump dates.

Drop some .Pps, sort sections and SEE ALSO.

Use standard section headers; uppercase .Sh argument; remove quotes in
.Sh arguments.

Add arch to Dt.

Remove some unnecessary whitespace.

Note joy at pnpbios; cross-reference joy(4) and pnpbios(4).

{add,remove} extra {comma,period} in SEE ALSO section

Update man pages to reflect the new things that can be attached to pnpbios.

branches: 1.3.2;
Document ess at pnpbios.

branches: 1.2.2;
Add some caveats.

Add a first shot at a pnpbios man page. Update other man pages to reflect
the fact that devices can attach to pnpbios.