k0kubun 271c8f5d06 test_io_wait.rb: try to stabilize test_wait_readable ... that randomly fails https://rubyci.org/logs/mswinci.japaneast.cloudapp.azure.com/vc12-x64/ruby-trunk/log/20181231T103312Z.fail.html.gz git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66663 b2dd03c8-39d4-4d8f-98ff-823fe69b080e		2018-12-31 12:54:40 +00:00
..
console
nonblock
wait