Follow CRuby r55728
Follow CRuby r55728

[Feature #12419]
https://github.com/ruby/ruby/commit/c6692d9410ab5b20ed3fa84db72d51d9a37a6179

sgarciac/spec,nobu/rubyspec,ruby/rubyspec,nobu/rubyspec,sgarciac/spec,sgarciac/spec,ruby/spec,nobu/rubyspec,eregon/rubyspec,kachick/rubyspec,ruby/spec,eregon/rubyspec,kachick/rubyspec,kachick/rubyspec,ruby/rubyspec,ruby/spec,eregon/rubyspec