[ruby/irb] Make SourceFinder ignore binary sources (https://github.com/ruby/irb/pull/836)
https://github.com/ruby/irb/commit/73b35bb7f4
[ruby/irb] Make SourceFinder ignore binary sources
(https://github.com/ruby/irb/pull/836)
https://github.com/ruby/irb/commit/73b35bb7f4