When using .require('./path/to/module', {expose: 'my-module'}) syntax module id becomes the 'my-module' string. It breaks the cmp function:

function cmp (a, b) {
  return a.id < b.id ? -1 : 1;
}

Which always returns false, when comparing String to a Number (other ids are numbers).
Proposed fix:

function isString (o) {
  return toString.call(o) === '[object String]'
}
function cmp (a, b) {
  if (isString(a.id) && !isString(b.id))
    return -1
  if (!isString(a.id) && isString(b.id))
    return 1
  return a.id < b.id ? -1 : 1
}

Versions of minimist below 0.2.1 suffer from a prototype pollution vulnerability.