remove warnings on ruby trunk

guides/bug_report_templates/action_controller_master.rb

@@ -1,4 +1,4 @@
-unless File.exists?('Gemfile')
+unless File.exist?('Gemfile')
   File.write('Gemfile', <<-GEMFILE)
     source 'https://rubygems.org'
     gem 'rails', github: 'rails/rails'
@@ -48,4 +48,4 @@ class BugTest < Minitest::Test
     def app
       Rails.application
     end
-end
+end

guides/bug_report_templates/active_record_master.rb

@@ -1,4 +1,4 @@
-unless File.exists?('Gemfile')
+unless File.exist?('Gemfile')
   File.write('Gemfile', <<-GEMFILE)
     source 'https://rubygems.org'
     gem 'rails', github: 'rails/rails'

guides/code/getting_started/config/boot.rb

@@ -1,4 +1,4 @@
 # Set up gems listed in the Gemfile.
 ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../../Gemfile', __FILE__)
 
-require 'bundler/setup' if File.exists?(ENV['BUNDLE_GEMFILE'])
+require 'bundler/setup' if File.exist?(ENV['BUNDLE_GEMFILE'])

guides/rails_guides.rb

@@ -5,7 +5,7 @@ $:.unshift pwd
 def bundler?
   # Note that rake sets the cwd to the one that contains the Rakefile
   # being executed.
-  File.exists?('Gemfile')
+  File.exist?('Gemfile')
 end
 
 begin

guides/rails_guides/generator.rb

@@ -184,7 +184,7 @@ module RailsGuides
     def generate?(source_file, output_file)
       fin  = File.join(source_dir, source_file)
       fout = output_path_for(output_file)
-      all || !File.exists?(fout) || File.mtime(fout) < File.mtime(fin)
+      all || !File.exist?(fout) || File.mtime(fout) < File.mtime(fin)
     end
 
     def generate_guide(guide, output_file)