re-patched r50599 because of test failure on TravisCI. [Backport #14060]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_4@64649 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
re-patched r50599 because of test failure on TravisCI.
[Backport #14060]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_4@64649 b2dd03c8-39d4-4d8f-98ff-823fe69b080e