docs: function ls (args, cb) {
    args = args.join("/").split("@").join("/")
    if (args.substr(-1) === "/") args = args.substr(0, args.length - 1)
    ls_(args, function(er, files) {
      files = files || []
      output.write(npm.config.get("outfd"), files.join("\n"), cb_)
      function cb_ () { cb(null, files) }
    })
  }