merge revision(s) 5e23b1138f16af0defb184d7deeffadfd2ce3c04: [Backport #15820]
Fix potential memory leak
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_6@67712 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 5e23b1138f16af0defb184d7deeffadfd2ce3c04: [Backport #15820]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_6@67712 b2dd03c8-39d4-4d8f-98ff-823fe69b080e