Should be `process.exit(1)`?

i get:

```
H:\src\atom\script\bootstrap:57
    exit(1);
    ^
ReferenceError: exit is not defined
    at H:\src\atom\script\bootstrap:57:5
    at H:\src\atom\script\utils\verify-requirements.js:15:7
    at H:\src\atom\script\utils\verify-requirements.js:60:7
    at exithandler (child_process.js:643:7)
    at ChildProcess.errorhandler (child_process.js:659:5)
    at ChildProcess.EventEmitter.emit (events.js:95:17)
    at Process.ChildProcess._handle.onexit (child_process.js:805:12)
```