fix fd mask detection on os x
This was broken in r59440 (3215b27a9abd8de793cf517f32d8901fd421eb1c) [Bug #14248]
From: Stefan Kaes skaes@railsexpress.de
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61500 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
fix fd mask detection on os x
This was broken in r59440 (3215b27a9abd8de793cf517f32d8901fd421eb1c)
[Bug #14248]
From: Stefan Kaes skaes@railsexpress.de
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61500 b2dd03c8-39d4-4d8f-98ff-823fe69b080e