fix(rubocop): add fixes using rubocop --safe-auto-correct

Gemfile

@@ -1,6 +1,7 @@
-source "https://rubygems.org"
+# frozen_string_literal: true
+
+source 'https://rubygems.org'
 
 gem 'kitchen-docker', '>= 2.9'
-gem 'kitchen-salt', '>= 0.6.0'
 gem 'kitchen-inspec', '>= 1.1'
-
+gem 'kitchen-salt', '>= 0.6.0'

bin/kitchen

@@ -8,11 +8,11 @@
 # this file is here to facilitate running it.
 #
 
-require "pathname"
-ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../../Gemfile",
-  Pathname.new(__FILE__).realpath)
+require 'pathname'
+ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../../Gemfile',
+                                           Pathname.new(__FILE__).realpath)
 
-bundle_binstub = File.expand_path("../bundle", __FILE__)
+bundle_binstub = File.expand_path('bundle', __dir__)
 
 if File.file?(bundle_binstub)
   if File.read(bundle_binstub, 300) =~ /This file was generated by Bundler/
@@ -23,7 +23,7 @@ Replace `bin/bundle` by running `bundle binstubs bundler --force`, then run this
   end
 end
 
-require "rubygems"
-require "bundler/setup"
+require 'rubygems'
+require 'bundler/setup'
 
-load Gem.bin_path("test-kitchen", "kitchen")
+load Gem.bin_path('test-kitchen', 'kitchen')

test/integration/default/controls/config_spec.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 control 'template configuration' do
   title 'should match desired lines'
 

test/integration/default/controls/packages_spec.rb

@@ -1,8 +1,8 @@
+# frozen_string_literal: true
+
 # Overide by OS
 package_name = 'bash'
-if os[:name] == 'centos' and os[:release].start_with?('6')
-  package_name = 'cronie'
-end
+package_name = 'cronie' if (os[:name] == 'centos') && os[:release].start_with?('6')
 
 control 'template package' do
   title 'should be installed'

test/integration/default/controls/services_spec.rb

@@ -1,8 +1,8 @@
+# frozen_string_literal: true
+
 # Overide by OS
 service_name = 'systemd-udevd'
-if os[:name] == 'centos' and os[:release].start_with?('6')
-  service_name = 'crond'
-end
+service_name = 'crond' if (os[:name] == 'centos') && os[:release].start_with?('6')
 
 control 'template service' do
   impact 0.5

test/integration/default/controls/subcomponent_config_spec.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 control 'template subcomponent configuration' do
   title 'should match desired lines'