CLI format parameter working?

[mysegfault]

Hello. I can't pass the "format" option to the CLI format-json. Looks like the code is not ready to handle this:

format-json [format <terse|plain|space|lines|diffy>] path/to/file.json

i.e.

$ ./node_modules/.bin/format-json plain package.json
fs.js:438
  return binding.open(pathModule._makeLong(path), stringToFlags(flags), mode);