Gemfile in sig-1.0.1 vs Gemfile in sig-1.0.2

@@ -1,10 +1,12 @@
 source 'https://rubygems.org'
 
 gemspec
 
+gem 'rake'
+gem 'irb' unless RUBY_ENGINE == "jruby"
 gem 'minitest'
 gem 'minitest-line'
 gem 'minitest-reporters'
-gem 'benchmark-ips'
-gem 'rubype'
-gem 'contracts'
+# gem 'benchmark-ips'
+# gem 'rubype'
+# gem 'contracts'