Revert "Auto corrected by following Style/ExpandPathArguments"

This reverts commit a5b84403bb.

Rakefile

@@ -3,6 +3,6 @@
 # for example lib/tasks/capistrano.rake, and they will automatically be available to Rake.
 
 require 'rake/dsl_definition'
-require File.expand_path('config/application', __dir__)
+require File.expand_path('../config/application', __FILE__)
 
 Growstuff::Application.load_tasks

config/application.rb

@@ -1,4 +1,4 @@
-require File.expand_path('boot', __dir__)
+require File.expand_path('../boot', __FILE__)
 
 require 'rails/all'
 require 'openssl'

config/boot.rb

@@ -1,6 +1,6 @@
 require 'rubygems'
 
 # Set up gems listed in the Gemfile.
-ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../Gemfile', __dir__)
+ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../../Gemfile', __FILE__)
 
 require 'bundler/setup' if File.exist?(ENV['BUNDLE_GEMFILE'])

config/environment.rb

@@ -1,5 +1,5 @@
 # Load the rails application
-require File.expand_path('application', __dir__)
+require File.expand_path('../application', __FILE__)
 
 # Initialize the rails application
 Growstuff::Application.initialize!

script/rails

@@ -2,6 +2,6 @@
 # This command will automatically be run when you run "rails"
 # with Rails 3 gems installed from the root of your application.
 
-APP_PATH = File.expand_path('../config/application', __dir__)
-require File.expand_path('../config/boot', __dir__)
+APP_PATH = File.expand_path('../../config/application', __FILE__)
+require File.expand_path('../../config/boot', __FILE__)
 require 'rails/commands'

spec/rails_helper.rb

@@ -17,7 +17,7 @@ SimpleCov.start :rails do
 end
 
 require 'spec_helper'
-require File.expand_path('../config/environment', __dir__)
+require File.expand_path("../../config/environment", __FILE__)
 require 'rspec/rails'
 # Add additional requires below this line. Rails is not loaded until this point!
 Rails.application.eager_load!