fix another hickup in the changelog

debian/changelog

@@ -33,6 +33,8 @@ apt (0.8.16~exp9) UNRELEASED; urgency=low
 apt (0.8.16~exp8) experimental; urgency=low
 
   [ David Kalnischkies ]
+  * algorithms.cc:
+    - show a debug why a package was kept by ResolveByKeep()
   * apt-pkg/packagemanager.cc:
     - do not fail on unpacked packages in SmartUnPack, just don't
       shedule them for unpack, but do all checks and configure them
@@ -228,14 +230,6 @@ apt (0.8.16~exp1) experimental; urgency=low
 
  -- Michael Vogt <mvo@debian.org>  Wed, 29 Jun 2011 12:40:31 +0200
 
-apt (1.8.15.9+nmu1) unstable; urgency=low
-
-  [ David Kalnischkies ]
-  * algorithms.cc:
-    - show a debug why a package was kept by ResolveByKeep()
-
- -- David Kalnischkies <kalnischkies@gmail.com>  Mon, 17 Oct 2011 16:36:22 +0200
-
 apt (0.8.15.9) unstable; urgency=low
 
   [ David Kalnischkies ]