Function cleanup

lib/internal/child_process.js:1028–1033

()

  // (i.e. PipeWraps or fds)
  stdio = ArrayPrototypeReduce(stdio, (acc, stdio, i) => {
    function cleanup() {
      for (let i = 0; i < acc.length; i++) {
        if ((acc[i].type === 'pipe' || acc[i].type === 'ipc') && acc[i].handle)
          acc[i].handle.close();
      }
    }

    // Defaults
    stdio ??= i < 3 ? 'pipe' : 'ignore';