Rakefile in test_diff-0.3.4 vs Rakefile in test_diff-0.4.0

@@ -6,6 +6,6 @@
 require 'rake/testtask'
 Rake::TestTask.new do |t|
   t.pattern = 'test/**/*_test.rb'
 end
 
-task default: %w(rubocop test build)
+task default: %w[rubocop test build]