Rubocop setting: avoid copping the universe

spec/spec_helper.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 #
 # Author:: Enrico Stahn <mail@enricostahn.com>
 #

spec/unit/fetcher_spec.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 VALID_TOKEN = "0123456789abcdef"
 INVALID_TOKEN = "0000000000000000"
 

spec/unit/generator/generator_processor_spec.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 module GitHubChangelogGenerator
   describe Generator do
     context "#exclude_issues_by_labels" do

spec/unit/generator/generator_tags_spec.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 describe GitHubChangelogGenerator::Generator do
   def tag_mash_with_name(tag)
     Hashie::Mash.new.tap { |mash_tag| mash_tag.name = tag }

spec/unit/parse_file_spec.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 describe GitHubChangelogGenerator::ParserFile do
   describe ".github_changelog_generator" do
     let(:options) { {} }

spec/unit/parser_spec.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 describe GitHubChangelogGenerator::Parser do
   describe ".user_project_from_remote" do
     context "when remote is type 1" do

spec/unit/reader_spec.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 #
 # Author:: Enrico Stahn <mail@enricostahn.com>
 #