Gemfile in unibits-2.8.0 vs Gemfile in unibits-2.9.0

- old
+ new

@@ -2,6 +2,6 @@ gemspec gem 'minitest' gem 'rake' -gem 'irbtools', require: 'irbtools/binding' +gem 'irbtools', require: 'irbtools/binding' unless RUBY_ENGINE == "jruby"