Rakefile in second_level_cache-2.3.3 vs Rakefile in second_level_cache-2.4.0

@@ -1,10 +1,12 @@
 #!/usr/bin/env rake
-require 'bundler/gem_tasks'
-require 'rake/testtask'
+# frozen_string_literal: true
 
+require "bundler/gem_tasks"
+require "rake/testtask"
+
 task default: :test
 
 Rake::TestTask.new do |t|
-  t.libs << 'lib' << 'test'
-  t.test_files = FileList['test/**/*_test.rb']
+  t.libs << "lib" << "test"
+  t.test_files = FileList["test/**/*_test.rb"]
 end