cleanup the changelog entry for the previous release (0.9.7.2)

debian/changelog

@@ -15,21 +15,17 @@ apt (0.9.7.3) UNRELEASED; urgency=low
 
 apt (0.9.7.2) unstable; urgency=low
 
-
   [ Manpages translation updates ]
   * French (Christian Perrier)
+  * German (Chris Leick)
 
   [ Program translation updates ]
   * Greek (Θανάσης Νάτσης)
-
   * Japanese (Kenshi Muto) (Closes: #679662)
   * Russian (Yuri Kozlov) (Closes: #679599)
   * Danish (Joe Dalton) (Closes: #680119)
   * Portuguese (Miguel Figueiredo) (Closes: #680616)
 
-  [ Manpage translation updates ]
-  * German (Chris Leick)
-
   [ David Kalnischkies ]
   * debian/apt.cron.daily:
     - do not try to backup extended_states file if it doesn't