[packaging] Switch using 3.0 native source format

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

Change-Id: I8b7c95788c3016aa2bed3def6efd355c89da4068
diff --git a/debian/changelog b/debian/changelog
index 73a69a8..c76fcb8 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+salt-formula-glance (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-glance (2016.12.1-2xenial1) xenial; urgency=medium
 
   * Fix files/pike symlink
diff --git a/debian/source/format b/debian/source/format
index 163aaf8..89ae9db 100644
--- a/debian/source/format
+++ b/debian/source/format
@@ -1 +1 @@
-3.0 (quilt)
+3.0 (native)