(MAINT) Rubocop: Add frozen_string_literal comment

Author: scotje

.rubocop.yml

@@ -2,6 +2,7 @@ require: rubocop-performance
 inherit_from: .rubocop_todo.yml
 
 AllCops:
+  TargetRubyVersion: 2.3
   Exclude:
     # Ignore HTML related things
     - '**/*.erb'
@@ -10,6 +11,7 @@ AllCops:
     - spec/fixtures/modules/**/*
     - spec/fixtures/ruby/**/*
 
+
 # DISABLED - not useful
 Bundler/OrderedGems:
   Enabled: false

Gemfile

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 source ENV['GEM_SOURCE'] || "https://rubygems.org"
 
 gemspec

Rakefile

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 if Bundler.rubygems.find_name('puppet_litmus').any?
   require 'puppet_litmus/rake_tasks'
 

lib/puppet-strings.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # The root module for Puppet Strings.
 module PuppetStrings
   # The glob patterns used to search for files to document.

lib/puppet-strings/describe.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'json'
 require 'puppet-strings/json'
 

lib/puppet-strings/json.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'json'
 
 # The module for JSON related functionality.

lib/puppet-strings/markdown.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'puppet-strings/json'
 
 # module for parsing Yard Registries and generating markdown

lib/puppet-strings/markdown/base.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'puppet-strings'
 require 'puppet-strings/json'
 require 'puppet-strings/yard'

lib/puppet-strings/markdown/data_type.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'puppet-strings/markdown/base'
 
 module PuppetStrings::Markdown

lib/puppet-strings/markdown/data_types.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require_relative 'data_type'
 
 module PuppetStrings::Markdown