Undefined and null argument variables are passed as strings about execa

[sindresorhus]

This is how built-in child_process works too:

console.log(process.argv.join(' '));

> require('child_process').execFileSync('node', ['t.js', undefined, null]).toString()
'/usr/local/bin/node /Users/sindresorhus/Downloads/t.js undefined null\n'

[schnittstabil]

The current behavior seems reasonable to me, AFAIK null and undefined are always treated that way:

> null + ''
'null'
> undefined + ''
'undefined'

> String(null)
'null'
> String(undefined)
'undefined'

[stigok]

Ok. Thanks for the feedback 👍