Gemfile in sidekiq-job_alert-0.1.5 vs Gemfile in sidekiq-job_alert-0.1.6

@@ -1,6 +1,10 @@
+# frozen_string_literal: true
+
 source "https://rubygems.org"
 
-git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
+git_source(:github) { |repo_name| "https://github.com/#{repo_name}" }
 
 # Specify your gem's dependencies in sidekiq-job_alert.gemspec
 gemspec
+
+gem 'rubocop', '~> 0.75.0', require: false