German dpkg translation update

Update to 1031t.

debian/changelog

@@ -43,6 +43,7 @@ dpkg (1.16.2) UNRELEASED; urgency=low
     not handle --srcdir correctly.
 
   [ Updated dpkg translations ]
+  * German (Sven Joachim).
   * Italian (Milo Casagrande). Closes: #627832
   * Swedish (Peter Krefting).