steveklabnik/rust_for_rubyists — pull request #42 by dskecse (2014-01-16 17:04:00+00:00)
Title: Correct Ruby method reference to Object#to_s instead of Object#to_str

Corrected the statement in chapter 10, where you say Ruby's `Object` class implements `#to_str` method, while obviously `Object.instance_methods.include?(:to_str)` returns `false`.