authenticator.rb in rbnacl-4.0.0.pre

- old
+ new

@@ -1,5 +1,7 @@
 # encoding: binary
+# frozen_string_literal: true
+
 RSpec.shared_examples "authenticator" do
   let(:key)     { vector "auth_key_#{described_class.key_bytes}".to_sym }
   let(:message) { vector :auth_message }
 
   context ".new" do