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

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

Removed unnecessary dependencies on librpcsvc.

Prodded by: des

$Id$ -> $FreeBSD$

Fixed DPADD.

Don't override the (correct) default for SRCS or MAN1.

Replaced bogus Lite1 (?) Id by $Id$. The key server files were
mis-imported so it is hard to tell where they came from, but at
least in Lite2 they don't have useful Makefiles, and I rewrote
most of the Makefile.

This commit was generated by cvs2svn to compensate for changes in r26244,
which included commits to RCS files with non-trunk default branches.

Import the last Secure RPC utility: keylogout.

This program is used to remove your secret key from the local
keyserv daemon.