make the -nodejs suffix configureable

[zeke]

I need a tool just like this for use on an electron project, but the -nodejs suffix will get in the way.

I could just replace() the output, but an option to specify the suffix in this lib would be nice.

[sindresorhus]

Are you aware Electron already exposes paths through app.getPath()?

[zeke]

Yes. I want to access these directories outside of an electron process.

[sindresorhus]

Alright, PR welcome then :) The suffix is there to ensure Node.js modules will never conflict with native apps of the same name. Having an option would be a good way to make that clear too.