Rakefile in russianpost-0.6.0 vs Rakefile in russianpost-0.7.0

@@ -1,9 +1,9 @@
-require "bundler/gem_tasks"
-require "rake/testtask"
+require 'bundler/gem_tasks'
+require 'rake/testtask'
 
 task default: :test
 
 Rake::TestTask.new do |t|
-  t.libs << "test"
+  t.libs << 'test'
   t.test_files = FileList['test/*_test.rb', 'test/*/*_test.rb']
 end