A script with "exit 0" fails to run

[dave-irvine]

If my command is specified like this:

"test": "exit 0",

it's possible to run this with npm:

12:53 $ npm test

> [email protected] test
> exit 0

But when I try to run via ultra, I get:

error error Command exit failed with Error: spawn exit ENOENT. Is the command on your path?

This is on Linux if that helps... exit is definitely on my path :)