Issue #9550 has been updated by Yui NARUSE.

Backport changed from 1.9.3: DONE, 2.0.0: DONE, 2.1: REQUIRED to 1.9.3: DONE, 2.0.0: DONE, 2.1: DONE

r45120

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Bug #9550: backport r45066
https://bugs.ruby-lang.org/issues/9550#change-45399

* Author: Usaku NAKAMURA
* Status: Closed
* Priority: Normal
* Assignee: 
* Category: 
* Target version: 
* ruby -v: -
* Backport: 1.9.3: DONE, 2.0.0: DONE, 2.1: DONE
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個別にbackportチケットを切るのがめんどいので手抜いてこっちに作ります。



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