debian/changelog: make the build-dep changelog entry match (debian) reality

debian/changelog

@@ -15,10 +15,11 @@ apt (0.7.20) unstable; urgency=low
     - Mentioned '/* ... */' comments. (Closes: #507601)
 
   [ Michael Vogt ]
-  * make "apt-get build-dep" installed packages marked automatic
-    by default. This can be changed by setting the value of
-    APT::Get::Build-Dep-Automatic to false (thanks to Aaron 
-    Haviland, closes: #44874, LP: #248268)
+  * add option to "apt-get build-dep" to mark the needed 
+    build-dep packages as automatic installed. 
+    This is controlled via the value of
+    APT::Get::Build-Dep-Automatic and is set "false" by default.  
+    Thanks to Aaron Haviland, closes: #44874
 
   [ Christian Perrier ]
   * Translations: