Use Debian instead of Debian GNU/Linux when referring to the distribution

debian/changelog

@@ -106,6 +106,8 @@ dpkg (1.15.6) UNRELEASED; urgency=low
   * Add support for disabling install-info at configure time using
     --withouth-install-info.
   * Update debian/copyright.
+  * Use Debian instead of ‘Debian GNU/Linux’ when referring to the
+    distribution.
 
   [ Modestas Vainius ]
   * Implement symbol patterns (Closes: #563752). From now on, it is possible to

debian/copyright

@@ -55,6 +55,6 @@ 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 GNU/Linux 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’
+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’.

dselect/methods/ftp/README.mirrors.txt

@@ -1,4 +1,4 @@
-Debian GNU/Linux - worldwide mirror sites
+Debian - worldwide mirror sites
 
 This file is broken up into two separate mirror listings:
 primary and Secondary mirror sites.  The definitions are as follows: