gush.gemspec in gush-3.0.0 vs gush.gemspec in gush-4.0.0

@@ -1,7 +1,6 @@
-# coding: utf-8
-lib = File.expand_path('../lib', __FILE__)
+lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 
 require_relative 'lib/gush/version'
 
 Gem::Specification.new do |spec|
@@ -31,8 +30,11 @@
   spec.add_dependency "paint", "~> 2.2"
   spec.add_dependency "thor", ">= 0.19", "< 1.3"
   spec.add_dependency "launchy", "~> 2.4"
   spec.add_development_dependency "bundler"
   spec.add_development_dependency "rake", "~> 12"
+  spec.add_development_dependency "rubocop", '~> 1.65.0'
+  spec.add_development_dependency "rubocop-rake", '~> 0.6.0'
+  spec.add_development_dependency "rubocop-rspec", '~> 3.0.3'
   spec.add_development_dependency "rspec", '~> 3.0'
   spec.add_development_dependency "pry", '~> 0.10'
 end