gistfile1.txt

fs.chown = chownFix(fs.chown)
fs.fchown = chownFix(fs.fchown)
fs.lchown = chownFix(fs.lchown)

fs.chownSync = chownFixSync(fs.chownSync)
fs.fchownSync = chownFixSync(fs.fchownSync)
fs.lchownSync = chownFixSync(fs.lchownSync)

function chownFix (orig) {
  return function (target, uid, gid, cb) {
    return orig.call(fs, target, uid, gid, function (er, res) {
      if (chownErOk(er)) er = null
      cb(er, res)
    })
  }
}