This is Debian's package maintenance system.
Copyright © 2009-2010 Modestas Vainius
Copyright © 2009 Romain Francoise
Copyright © 2008 Zack Weinberg
Copyright © 2007 Colin Watson
Copyright © 2007 Don Armstrong
Copyright © 2007 Nicolas François
Copyright © 2007-2010 Raphaël Hertzog
Copyright © 2006-2010 Guillem Jover
Copyright © 2006-2008 Frank Lichtenheld
Copyright © 2004-2005 Scott James Remnant
Copyright © 2004-2005, 2007-2008 Canonical Ltd.
Copyright © 2001,2007 Joey Hess
Copyright © 1999-2002 Wichert Akkerman
Copyright © 1999-2001 Marcus Brinkmann
Copyright © 1999 Richard Kettlewell
Copyright © 1999 Ben Collins
Copyright © 1999 Roderick Shertler
Copyright © 1998-1999 Martin Schulze
Copyright © 1998 Heiko Schlittermann
Copyright © 1998 Nils Rennebarth
Copyright © 1998 Juan Cespedes
Copyright © 1998 Jim Van Zandt
Copyright © 1998 Koichi Sekido
Copyright © 1997-1998 Juho Vuori
Copyright © 1997-1998 Charles Briscoe-Smith
Copyright © 1996-1998 Miquel van Smoorenburg
Copyright © 1996 Kim-Minh Kaplan
Copyright © 1996 Klee Dienes
Copyright © 1996 Michael Shields
Copyright © 1995-1996 Erick Branderhorst
Copyright © 1995 Bruce Perens
Copyright © 1994-1999 Ian Jackson
Copyright © 1994 Carl Streeter
Copyright © 1994 Matt Welsh
Copyright © 1994 Ian Murdock
Includes public domain MD5 code:
lib/dpkg/md5.c and lib/dpkg/md5.h originally written by Colin Plumb,
Includes code from ‘getopt’ and ‘gettext’:
Copyright © 1984-2002 Free Software Foundation, Inc.
License:
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
On Debian systems, the complete text of the GNU General Public License
can be found in ‘/usr/share/common-licenses/GPL’ or in the dpkg source
as the file ‘COPYING’.