lib/copy.js
function cleanup (dirs) {
  return function (mode, pass, callback) {
    var done = after(dirs.length, callback)

    dirs.forEach(function (dir) {
      rimraf(dir, done)
    })
  }
}
function cleanup (dirs) {
  return function (mode, pass, callback) {
    var done = after(dirs.length, callback)

    dirs.forEach(function (dir) {
      rimraf(dir, done)
    })
  }
}
function cleanup ( dirs ) { return function ( mode , pass , callback ) { var done = after ( dirs . length , callback ) dirs . forEach ( function ( dir ) { rimraf ( dir , done ) } ) } }
don't leave the tmp dirs
don t leave the tmp dirs