License text cleanup

Change-Id: I105375c653b1a1dce8f0f71005b281ff137c6f42
Signed-off-by: Dave Barach <dave@barachs.net>

extras/emacs/tunnel-decap-skel.el

@@ -1,3 +1,16 @@
+;;; Copyright (c) 2016 Cisco and/or its affiliates.
+;;; Licensed under the Apache License, Version 2.0 (the "License");
+;;; you may not use this file except in compliance with the License.
+;;; You may obtain a copy of the License at:
+;;;
+;;;     http://www.apache.org/licenses/LICENSE-2.0
+;;;
+;;; Unless required by applicable law or agreed to in writing, software
+;;; distributed under the License is distributed on an "AS IS" BASIS,
+;;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+;;; See the License for the specific language governing permissions and
+;;; limitations under the License.
+
 ;;; tunnel-decap-skel.el - tunnel decapsulation skeleton
 
 (require 'skeleton)