Update gems and ruby version to 2.4.1

.rubocop.yml

@@ -4,7 +4,7 @@ AllCops:
   - vendor/**/*
   - "*/puppet/Puppetfile"
   - "*/puppet/.tmp/**/*"
-  TargetRubyVersion: 1.9
+  TargetRubyVersion: 2.4
 Documentation:
   Enabled: false
 AlignParameters:

.travis.yml

@@ -1,8 +1,9 @@
----
+sudo: false
 language: ruby
 cache: bundler
+
 rvm:
-  - 2.3.3
+  - 2.4.1
 
 bundler_args: --without integration
 script: bundle exec rake

Gemfile

@@ -1,11 +1,13 @@
+# frozen_string_literal: true
+
 source 'https://rubygems.org'
 
-gem 'highline', '~> 1.6.0'
-gem 'inspec', '~> 1'
+gem 'highline', '~> 1.7.0'
+gem 'inspec', '~> 3.0.0'
 gem 'rack', '1.6.4'
 gem 'rake'
-gem 'rubocop', '~> 0.46.0'
+gem 'rubocop', '~> 0.60.0'
 
 group :tools do
-  gem 'github_changelog_generator', '~> 1.12.0'
+  gem 'github_changelog_generator', '~> 1.14.0'
 end

Rakefile

@@ -1,4 +1,5 @@
 #!/usr/bin/env rake
+# frozen_string_literal: true
 
 require 'rake/testtask'
 require 'rubocop/rake_task'

controls/apache_spec.rb

@@ -1,4 +1,5 @@
-# encoding: utf-8
+# frozen_string_literal: true
+
 #
 # Copyright 2016, Patrick Muench
 #
@@ -226,6 +227,7 @@
   loaded_sites.each do |id|
     virtual_host = file(File.join(sites_enabled_path, id)).content.gsub(/#.*$/, '').scan(%r{<virtualhost.*443(.*?)<\/virtualhost>}im).flatten
     next if virtual_host.empty?
+
     describe virtual_host do
       it { should include(/^\s*?SSLHonorCipherOrder\s+?On/i) }
     end