Add frozen_string_literals for older Ruby versions and other rubocop fixes.

blackrat · blackrat · commit 2f983735d1eb · 2025-09-27T11:44:46.000-04:00
diff --git a/Rakefile b/Rakefile
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rake/testtask'
 
 Rake::TestTask.new(:test) do |t|
