[packaging] Switch using 3.0 native source format

    Related-Prod: https://mirantis.jira.com/browse/PROD-21900

Change-Id: If7a9cec93abf34619133a95a04e87d59d07dc098
diff --git a/debian/changelog b/debian/changelog
index b2a1f22..dd832bb 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+salt-formula-heat (2016.12.1) xenial; urgency=medium
+
+  * Switch using 3.0 native source format
+
+ -- devops <devops@mirantis.com>  Fri, 10 Aug 2018 15:42:34 +0400
+
 salt-formula-heat (2016.12.1-2xenial1) xenial; urgency=medium
 
   * Fix files/pike symlink