Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

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

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

Remove the advertising clause from UCB copyrighted files in usr.bin. This
is in accordance with the information provided at
ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change

Also add $FreeBSD$ to a few files to keep svn happy.

Discussed with: imp, rwatson

Directly use memory allocation functions and remove needless casts in
their usage. Also use associated modern types instead of k&r ones.

remove external reference to not (or at least no longer) existing variable 'myname'

Mark functions as __dead2 in order to help the LLVM static checker
understand which code paths aren't possible.

This commit eliminates 117 false positive bug reports of the form
"allocate memory; error out if pointer is NULL; use pointer".

Use the constants from <limits.h> for the sizes of integral C types
rather than defining them ourselves.

remove __P

WARNS=2 and s/register//.

Set NO_WERROR=true because there are some flex(1) issues that need
to be dealt with.

Constify

$Id$ -> $FreeBSD$

Add support for Bison's "%expect <int>" directive.

I originally coded this myself, and now I realize {Net,Open}BSD had already
coded this. I have tossed my version to reduce diffs between the projects.

Obtained from: OpenBSD 2.5

Use err(3). Rewrote man page in mdoc format. The user visible change is that
report of s/r and r/r conflicts is now printed in two separate lines beginning
by `yacc: '.

Revert $FreeBSD$ to $Id$

Make the long-awaited change from $Id$ to $FreeBSD$

This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.

Add RCS id's since these files have left the default branch.

This doesn't change any functionality, it simple makes yacc(1)
compile -Wall clean.

This commit was generated by cvs2svn to compensate for changes in r1590,
which included commits to RCS files with non-trunk default branches.

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