Rakefile in stones-1.1.3 vs Rakefile in stones-1.2.0

@@ -1,9 +1,9 @@
 begin
-  require 'bundler'
-  require 'bundler/setup'
+  require "bundler"
+  require "bundler/setup"
 rescue LoadError
-  puts 'You must `gem install bundler` and `bundle install` to run rake tasks'
+  puts "You must `gem install bundler` and `bundle install` to run rake tasks"
 end
 
 Bundler::GemHelper.install_tasks
 
 desc "Clean automatically generated files"