Issue #7991 has been updated by nagachika (Tomoyuki Chikanaga).


I'll add r39533 for clean merge.

Let's put revisions in order.

merged: r39533, r39542, r39545, r39558, r39559, r39560, r39562, r39572, r39579, r39590, r39592
will be merged: r39597, r39603, (with ref. #8019 r39606, r39609), r39607, (with ref. #7749 r39608), r39621, r39622 and r39731


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Backport #7991: backport r39542
https://bugs.ruby-lang.org/issues/7991#change-37675

Author: hsbt (Hiroshi SHIBATA)
Status: Closed
Priority: High
Assignee: nagachika (Tomoyuki Chikanaga)
Category: 
Target version: 


https://github.com/ruby/ruby/pull/252


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