fix license header for Makefile
diff --git a/lib/go/Makefile b/lib/go/Makefile
index b9d7209..0112a65 100644
--- a/lib/go/Makefile
+++ b/lib/go/Makefile
@@ -1,9 +1,11 @@
#
-# Copyright 2020 Cloudera, Inc. All rights reserved.
-#
-# 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
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you 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
#
