git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@20189 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
error causes in securing, cannot restore the state of accepted
socket.
fixed [ruby-core:19728]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@20189 b2dd03c8-39d4-4d8f-98ff-823fe69b080e