[packaging] Switch using 3.0 native source format

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

Change-Id: I3e805a7da976a26583123d9ef8e26a260ecbb68e
diff --git a/debian/changelog b/debian/changelog
index e1adcff..1270339 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+salt-formula-keystone (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-keystone (2016.12.1-1xenial2) xenial; urgency=medium
 
   * Add more dependencies