merge revision(s) 57289: [Backport #13114]
test_io_console.rb: fix of old CentOS5 * test/io/console/test_io_console.rb (test_winsize): on old CentOS5 window size seems unable to be set across a pty.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_4@57897 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 57289: [Backport #13114]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_4@57897 b2dd03c8-39d4-4d8f-98ff-823fe69b080e