[ruby/fileutils] [DOC] Enhanced RDoc (https://github.com/ruby/fileutils/pull/81)
https://github.com/ruby/fileutils/commit/b9d5a79e38
[ruby/fileutils] [DOC] Enhanced RDoc (https://github.com/ruby/fileutils/pull/81)
https://github.com/ruby/fileutils/commit/b9d5a79e38