Update copyright statements

Sort them by initial year. Add new holders, but for now only those which
do not need clarification, the rest will be added later.

debian/changelog

@@ -105,6 +105,7 @@ dpkg (1.15.6) UNRELEASED; urgency=low
     --withouth-update-alternatives.
   * Add support for disabling install-info at configure time using
     --withouth-install-info.
+  * Update debian/copyright.
 
   [ Modestas Vainius ]
   * Implement symbol patterns (Closes: #563752). From now on, it is possible to

debian/copyright

@@ -1,32 +1,37 @@
 This is Debian's package maintenance system.
 
-Copyright © 2006-2008 Frank Lichtenheld <djpig@debian.org>
-Copyright © 2006-2008 Guillem Jover <guillem@debian.org>
-Copyright © 2007-2008 Raphaël Hertzog <hertzog@debian.org>
+Copyright © 2009-2010 Modestas Vainius <modax@debian.org>
+Copyright © 2009 Romain Francoise <rfrancoise@debian.org>
+Copyright © 2008 Zack Weinberg <zackw@panix.com>
 Copyright © 2007 Colin Watson <cjwatson@debian.org>
+Copyright © 2007 Don Armstrong <don@donarmstrong.com>
+Copyright © 2007 Nicolas François <nicolas.francois@centraliens.net>
+Copyright © 2007-2010 Raphaël Hertzog <hertzog@debian.org>
+Copyright © 2006-2010 Guillem Jover <guillem@debian.org>
+Copyright © 2006-2008 Frank Lichtenheld <djpig@debian.org>
 Copyright © 2004-2005 Scott James Remnant <scott@netsplit.com>
-Copyright © 2004-2005 Canonical Ltd.
+Copyright © 2004-2005, 2007-2008 Canonical Ltd.
+Copyright © 2001,2007 Joey Hess <joeyh@debian.org>
 Copyright © 1999-2002 Wichert Akkerman <wakkerma@debian.org>
 Copyright © 1999-2001 Marcus Brinkmann <brinkmd@debian.org>
-Copyright © 2001,2007 Joey Hess <joeyh@debian.org>
-Copyright © 1994-1999 Ian Jackson <ian@chiark.greenend.org.uk>
 Copyright © 1999 Richard Kettlewell <rjk@sfere.greenend.org.uk>
 Copyright © 1999 Ben Collins <bcollins@debian.org>
 Copyright © 1999 Roderick Shertler <roderick@argon.org>
 Copyright © 1998-1999 Martin Schulze <joey@infodrom.north.de>
 Copyright © 1998 Heiko Schlittermann <heiko@lotte.sax.de>
-Copyright © 1996-1998 Miquel van Smoorenburg <miquels@cistron.nl>
-Copyright © 1997-1998 Juho Vuori <javuori@cc.helsinki.fi>
-Copyright © 1997-1998 Charles Briscoe-Smith <cpbs@debian.org>
 Copyright © 1998 Nils Rennebarth <nils@debian.org>
 Copyright © 1998 Juan Cespedes <cespedes@debian.org>
 Copyright © 1998 Jim Van Zandt <jrv@vanzandt.mv.com>
 Copyright © 1998 Koichi Sekido <sekido@mbox.kyoto-inet.or.jp>
-Copyright © 1995-1996 Erick Branderhorst <branderhorst@heel.fgg.eur.nl>
+Copyright © 1997-1998 Juho Vuori <javuori@cc.helsinki.fi>
+Copyright © 1997-1998 Charles Briscoe-Smith <cpbs@debian.org>
+Copyright © 1996-1998 Miquel van Smoorenburg <miquels@cistron.nl>
 Copyright © 1996 Kim-Minh Kaplan <kkaplan@cdfhp3.in2p3.fr>
 Copyright © 1996 Klee Dienes <klee@debian.org>
 Copyright © 1996 Michael Shields <shields@crosslink.net>
+Copyright © 1995-1996 Erick Branderhorst <branderhorst@heel.fgg.eur.nl>
 Copyright © 1995 Bruce Perens <bruce@pixar.com>
+Copyright © 1994-1999 Ian Jackson <ian@chiark.greenend.org.uk>
 Copyright © 1994 Carl Streeter <streeter@cae.wisc.edu>
 Copyright © 1994 Matt Welsh <mdw@sunsite.unc.edu>
 Copyright © 1994 Ian Murdock <imurdock@debian.org>