Copy stable/10@r272459 to releng/10.1 as part of
the 10.1-RELEASE process.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Remove contractions.

Explain some of the reasons that fpsetprec() is unlikely to work as
one might expect. (These functions have already been deprecated for
many years.)

PR: 133583

mdoc: drop redundant .Pp and .LP calls

They have no effect when coming in pairs, or before .Bl/.Bd

mdoc: move remaining sections into consistent order

This pertains mostly to FILES, HISTORY, EXIT STATUS and AUTHORS sections.

Found by: mdocml lint run
Reviewed by: ru

Fix typos and use consistent section names in manual pages:

s/SYSCTLS/SYSCTL VARIABLES/
s/TUNABLES/LOADER TUNABLES/
s/CAVEAT/CAVEATS/
s/DESCIPTION/DESCRIPTION/

Reviewed by: ru
MFC after: 3 days

Mechanically kill hard sentence breaks and double whitespaces.

Cross-reference fenv(3).

Support for dynamic adjustment of FPU precision is only available on
i386 and amd64, so fp[gs]prec(3) don't exist on other platforms.

PR: 52882

mdoc(7) police: Use the new .In macro for #include statements.

Prepare for mdoc(7)NG.

Remove single-space hard sentence breaks. These degrade the quality
of the typeset output, tend to make diffs harder to read and provide
bad examples for new-comers to mdoc.

Mandate the inclusion of <ieeefp.h> instead of <floatingpoint.h>. The
latter is just wrong.

There were many other problems spotted by bde, none of which are
addressed here.

Reviewed by: bde

$Id$ -> $FreeBSD$

Document the fpgetprec/fpsetprec functions in their man page.
Add cross-references to the elusive fpsetmask() function to various other
man pages.
Reviewed by: bde

Fixed type bugs in synopsis. Some of the typedefs that were used here
haven't existed for years, if they ever existed. The "prototypes" are
actually for macros, so they are difficult to check automatically.

Fixed misuse of .Ft for enum members. (.Fa seems to be the best
available macro for enum, struct and union members. .Ft seems to
be the best available macro for enum, struct and union tags and
types).

Fixed missing void arg types.

add missing cvs Id lines.

Fix a bunch of spelling errors in a bunch of man pages.

Obtained from: 1.1.5 (originally by Andrew Moore)

Add the manpage for the stuff in <machine/floatingpoint.h>.