This is the Debian package of Lintian, the Debian package checker.
The package is native to Debian, so it has no separate "upstream source".

Lintian was designed and written by Christian Schwarz
<schwarz@debian.org> and Richard Braakman <dark@xs4all.nl>.
Parts of it were written by Joey Hess <joeyh@master.debian.org>.
The package was previously maintained by Darren Benham <gecko@debian.org>.
Lintian is now maintained by Sean 'Shaleh' Perry <shaleh@debian.org>.

Lintian Copyright (c) 1998 Christian Schwarz and Richard Braakman

This program is free software; you may 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.

This 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.

A copy of the GNU General Public License is available as
/usr/share/common-licenses/GPL in the Debian GNU/Linux distribution or on the
World Wide Web at http://www.gnu.org/copyleft/gpl.html.  You can also
obtain it by writing to the Free Software Foundation, Inc., 59 Temple
Place - Suite 330, Boston, MA 02111-1307, USA.