Issue #8555 has been reported by authorNari (Narihiro Nakamura).

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Backport #8555: Backport r41325
https://bugs.ruby-lang.org/issues/8555

Author: authorNari (Narihiro Nakamura)
Status: Open
Priority: Normal
Assignee: usa (Usaku NAKAMURA)
Category: 
Target version: 


#8554 ???????????????????件??????
????????????????????????????????????????添??????????????????
test-all????????????????確????????????????

ruby 1.9.3 ????make rdoc?????????以???????????????
https://gist.github.com/authorNari/5829337



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