protocol.rb in avro-1.11.0

- old
+ new

@@ -1,4 +1,5 @@
+# frozen_string_literal: true
 # 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