Rakefile in git-multi-1.0.5 vs Rakefile in git-multi-1.0.6

@@ -13,19 +13,23 @@
 desc 'Validate the gemspec'
 task :validate do
   gemspec.validate
 end
 
+require 'rubocop/rake_task'
+
+RuboCop::RakeTask.new
+
 require 'rake/testtask'
 
 Rake::TestTask.new(:test) do |t|
   t.libs << 'test'
   t.libs << 'lib'
   t.test_files = FileList['test/**/*_test.rb']
 end
 
-task :default => :test
+task :default => [:rubocop, :test]
 
 require 'git/multi'
 
 git_workarea  = File.join(Git::Multi::WORKAREA, 'git', 'git')
 documentation = File.join(git_workarea, 'Documentation')
@@ -39,11 +43,11 @@
   File.write(task.name, ERB.new(File.read(task.source)).result)
 end
 
 task :documentation => git_asciidoc do
   Dir.chdir(documentation) do
-    # use git's documentation approach and build system
-    %x{ make git-multi.1 git-multi.html }
+    # use git's documentation framework
+    `make git-multi.1 git-multi.html`
     FileUtils.cp 'git-multi.1',    Git::Multi::MAN_PAGE
     FileUtils.cp 'git-multi.html', Git::Multi::HTML_PAGE
   end
 end