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

Rename logf --> chat_logf to avoid naming conflicts
with GCC built-in (and with C90 reserved library name).

Approved by: gordon (Mentor)

Replace -fno-builtin-logf with a -D argument to change the function name.

Disclaim ownership of pppd/chat. It is vendor code, but has been badly
neglected here.

The math function logf() probably isn't doing us much good for logging
stuff. Add -fno-builtin-logf.

Remove GCC-specific flags.

MAN[1-9] -> MAN.

$Id$ -> $FreeBSD$

Tweaks to allow compiling -Wall (mostly adding "const" to char rcsid[]).

Cleanup and remove the not-too-useful examples. The current versions
should be in share/examples if anywhere.

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.

Merge in changes from ppp-2.2's chat onto the mainline...

This commit was generated by cvs2svn to compensate for changes in r11987,
which included commits to RCS files with non-trunk default branches.

Vendor branch import of chat from ppp-2.2 package..

chat for ppp, from ppp 2.1.2