git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@32848 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
OpenBSD seems not to detach the controlling terminal, when the
argument noclose is non-zero. ref: [Bug #5135]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@32848 b2dd03c8-39d4-4d8f-98ff-823fe69b080e