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

Spelling fixes for usr.bin/

Fix clang warnings.

Approved by: philip (mentor)

Include <err.h> where needed. Add $FreeBSD$ where missing.

Start the dreaded NOFOO -> NO_FOO conversion.

OK'ed by: core

Fix typos; add FreeBSD Id where missing.

Merge conflicts, fix Makefiles and remove (re)moved file(s).

This commit was generated by cvs2svn to compensate for changes in r91586,
which included commits to RCS files with non-trunk default branches.

Expand x{malloc,calloc,realloc,strdup} in-place.
(even found some unchecked naked uses)

Keep my dirty paws off of the $NetBSD$ id's. They're tabbed and should
remain so.

Submitted by: bde/obrien

Aesthetics: fix placement of $NetBSD$ (use space instead of tab)

Properly constify the rcsid[].

Add $FreeBSD$ to the files which didn't have it yet.

Fix the .c files, so that the $FreeBSD$ is contained within the rcsid. [bde]

Sweep through the tree fixing mmap() usage:

- Use MAP_FAILED instead of the constant -1 to indicate
failure (required by POSIX).
- Removed flag arguments of '0' (required by POSIX).
- Fixed code which expected an error return of 0.
- Fixed code which thought any address with the high bit set
was an error.
- Check for failure where no checks were present.

Discussed with: bde

General -Wall warning cleanup, part I.
Submitted-By: Kent Vander Velden <graphix@iastate.edu>

This commit was generated by cvs2svn to compensate for changes in r12099,
which included commits to RCS files with non-trunk default branches.