specification.rb: fix leaked FDs
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46946 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
specification.rb: fix leaked FDs
redirection FDs.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46946 b2dd03c8-39d4-4d8f-98ff-823fe69b080e