Rakefile in dockerfile-rails-1.0.18 vs Rakefile in dockerfile-rails-1.1.0

@@ -1,17 +1,19 @@
+# frozen_string_literal: true
+
 require "bundler/gem_tasks"
 
 # Run `rake release` to release a new version of the gem.
 
-require 'rake/testtask'
+require "rake/testtask"
 Rake::TestTask.new do |t|
   t.libs << "test"
-  t.test_files = FileList['test/test*.rb']
+  t.test_files = FileList["test/test*.rb"]
   t.verbose = true
 end
 
 namespace :test do
   task :capture do
-    ENV['TEST_CAPTURE'] = 'true'
+    ENV["TEST_CAPTURE"] = "true"
     Rake::Task[:test].invoke
   end
 end