Document opts.prog and opts.args

[edmorley]

Hi

Looking at the README it seemed like there was no way to customise the args passed (needed for yarnpkg/yarn#6493), however there are some additional undocumented options that would be good to add to the README:

cmd-shim/index.js

Line 82 in b3c57c0

let prog = opts.prog

cmd-shim/index.js

Line 88 in b3c57c0

let args = opts.args || ''

[zkochan]

you already used them and they work correctly? I don't have objections adding them to the readme

let's just double check that they are covered with tests

[edmorley]

Sorry for the delayed reply. I didn't get as far as trying them, since I realised a different approach would likely be required for the use-case in that yarn issue.

[ExE-Boss]

They are documented in the type definition file:

cmd-shim/index.d.ts

Lines 24 to 32 in 56ec114

	/**
	* The path to the executable file.
	*/
	prog?: string;
	/**
	* The arguments to initialize the `node` process with.
	*/
	args?: string;