Copyright for debian-installer-utils source package in Stretch

These are modules for debian-installer.

Authors: David Whedon, Tollef Fog Heen, Thorsten Sauter

Copyright 2001 David Whedon ,
          2002 Tollef Fog Heen 
          2003 Thorsten Sauter 
	  2003 Rob Landley 
	  2003 Joey Hess 
	  2005 Colin Watson 

The copyright of this package is GPL, version 2 or later.

On Debian systems, a copy of the GNU General Public License is available in
/usr/share/common-licenses/GPL.