[CORD-2161]
Fix DNS server startup issues with unbound/nsd

Change-Id: I4f1a00da40d10e093077e22bdf95643e11f34836
diff --git a/roles/dns-unbound/handlers/main.yml b/roles/dns-unbound/handlers/main.yml
index 36a3cc0..858b7c0 100644
--- a/roles/dns-unbound/handlers/main.yml
+++ b/roles/dns-unbound/handlers/main.yml
@@ -1,4 +1,4 @@
-
+---
 # Copyright 2017-present Open Networking Foundation
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
@@ -13,9 +13,11 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-
----
-#file: roles/dns-unbound/handlers/main.yml
+# dns-unbound/handlers/main.yml
 
 - name: restart-unbound
-  service: name=unbound state=restarted
+  service:
+    name: unbound
+    enabled: yes
+    state: restarted
+