Nsupdate idempotency fix

lib/ansible/modules/network/nsupdate.py

@@ -223,14 +223,15 @@ class RecordManager(object):
                 self.dns_rc = self.modify_record()
                 if self.dns_rc != 0:
                     result['msg'] = "Failed to update DNS record (rc: %d)" % self.dns_rc
-        else:
-            result['changed'] = False
 
             if self.dns_rc != 0:
                 result['failed'] = True
             else:
                 result['changed'] = True
 
+        else:
+            result['changed'] = False
+
         return result
 
     def create_record(self):