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

Mechanically kill hard sentence breaks.

Remove BUGS section indicating that these calls are unimplemented.
Update copyrights.

Obtained from: TrustedBSD Project

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

Use the ``.Rv -std'' mdoc(7) macro in appropriate cases.

Reviewed by: ru

mdoc(7) police: removed HISTORY info from the .Os call.

Record -lposix1e merge with -lc.

mdoc(7) police: removed history info from the .Os FreeBSD call.

Use Fx macro wherever possible.

o EACCES is not a possible error for acl_from_text(), so fix
acl_from_text.3
o Minor whitespace cleanups relative to the TrustedBSD tree to reduce
content-free differences.

Obtained from: TrustedBSD Project

o Remove extra cross reference from acl.3 to acl.3
o Remove "BUGS" entries indicating that there's nowhere to store ACLs as
we now have extended attributes.

Obtained from: TrustedBSD Project

Introduce .Lb macro to libposix1e manpages
Sort some .Nm values
Decapitalize .Nd values

Fix various typos and mdoc style issues.

Reviewed by: rwatson

Introduce ACL man pages en masse for library calls, and general introduction.

Introduce ACL man pages en masse for library calls, and general introduction.

Also, fix acl_valid.c non-portable calls to include _np in their names,
making them standard-happy as well as consistent with acl.h