German dpkg translation update

Update to 1074t2u.

debian/changelog

@@ -32,6 +32,7 @@ dpkg (1.17.2) UNRELEASED; urgency=low
     or by renaming them to match reality.
 
   [ Updated programs translations ]
+  * German (Sven Joachim).
   * Vietnamese (Trần Ngọc Quân).
 
   [ Updated scripts translations ]