rubysl-openssl.gemspec in rubysl-openssl-2.0.0 vs rubysl-openssl.gemspec in rubysl-openssl-2.0.1

@@ -20,6 +20,7 @@
   spec.required_ruby_version = "~> 2.0"
 
   spec.add_development_dependency "bundler", "~> 1.3"
   spec.add_development_dependency "rake", "~> 10.0"
   spec.add_development_dependency "mspec", "~> 1.5"
+  spec.add_development_dependency "rubysl-prettyprint", "~> 2.0"
 end