Changelog entry for Vietnamese translation

debian/changelog

@@ -1,3 +1,10 @@
+apt (0.9.12) UNRELEASED; urgency=low
+
+  [ Trần Ngọc Quân ]
+  * Update Vietnamese translation. Closes: #720752
+
+ -- Christian Perrier <bubulle@debian.org>  Sun, 25 Aug 2013 15:39:40 +0200
+
 apt (0.9.11) unstable; urgency=low
 
   [ Daniel Hartwig ]