Rakefile in telegram-bot-ruby-0.18.0 vs Rakefile in telegram-bot-ruby-0.19.0

@@ -1,13 +1,15 @@
+# frozen_string_literal: true
+
 require 'bundler/gem_tasks'
 require 'bundler/setup'
 require 'rubocop/rake_task'
 require 'rspec/core/rake_task'
 
 RuboCop::RakeTask.new(:rubocop) do |task|
   task.fail_on_error = false
   task.options = %w[--force-exclusion]
-  task.patterns = %w[lib/**/*.rb]
+  task.patterns = %w[{lib,spec}/**/*.rb Rakefile]
   task.requires << 'rubocop-rspec'
 end
 
 RSpec::Core::RakeTask.new(:spec)