This is germinate, written by Scott James Remnant and
Colin Watson , and packaged by Colin Watson.
The source is available using bzr from here:
http://bazaar.launchpad.net/+branch/germinate
Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Canonical Ltd.
update-metapackage.py also Copyright (c) 2006 Gustavo Franco
Germinate 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, or (at your option) any
later version.
Germinate 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.
You should have received a copy of the GNU General Public License
along with Germinate; see the file COPYING. If not, write to the Free
Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
02110-1301, USA.
A copy of the GNU General Public License version 2 is available in
/usr/share/common-licenses/GPL-2.