* `maxBuffer` {Number} (Default: 200*1024)
* `killSignal` {String} (Default: 'SIGTERM')
* `callback` {Function} called with the output when process terminates
- * `code` {Integer} Exit code
+ * `error` {Error}
* `stdout` {Buffer}
* `stderr` {Buffer}
* Return: ChildProcess object
* `maxBuffer` {Number} (Default: 200*1024)
* `killSignal` {String} (Default: 'SIGTERM')
* `callback` {Function} called with the output when process terminates
- * `code` {Integer} Exit code
+ * `error` {Error}
* `stdout` {Buffer}
* `stderr` {Buffer}
* Return: ChildProcess object