Fix test of parallel test breaked by r40553
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40554 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Fix test of parallel test breaked by r40553
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40554 b2dd03c8-39d4-4d8f-98ff-823fe69b080e