prepare debian release

debian/changelog

+hddemux (0.4-2) unstable; urgency=medium
+
+  * make the test suite a little more robust and verbose
+
+ -- Daniel Kahn Gillmor <dkg@fifthhorseman.net>  Thu, 30 Aug 2018 09:26:03 -0400
+
 hddemux (0.4-1) unstable; urgency=medium
 
   * new upstream release
@@ -16,7 +22,7 @@ hddemux (0.4-1) unstable; urgency=medium
   * add autopkgtest
   * handle upstream test suite
 
- -- Daniel Kahn Gillmor <dkg@fifthhorseman.net>  Wed, 29 Aug 2018 16:52:12 -0400
+ -- Daniel Kahn Gillmor <dkg@fifthhorseman.net>  Thu, 30 Aug 2018 09:25:34 -0400
 
 hddemux (0.3-1) unstable; urgency=medium