mark as unreleased since it has not been uploaded yet

debian/changelog

@@ -1,4 +1,4 @@
-apt (0.7.10) unstable; urgency=low
+apt (0.7.10) UNRELEASED; urgency=low
 
   [ Otavio Salvador ]
   * Applied patch from Mike O'Connor <stew@vireo.org> to add a manpage to