prefer_standard no longer working

[jmanian]

I'm having trouble getting the prefer_standard option working, as documented here. I suspect something may have changed in recent versions of SublimeLinter.

The readme says to add the provided settings to the "global preferences." I wasn't sure exactly where that was supposed to be, but I think it's talking about the SublimeLinter user settings (~/Library/Application Support/Sublime Text/Packages/User/SublimeLinter.sublime-settings)

However this file expects a different format than what the readme provies (maybe this has changed in the last 4 years). So I translated the settings into this format:

// SublimeLinter Settings - User
{
  "linters": {
    "rubocop": {
      "disable": null
    },
    "standardrb": {
      "disable": null,
      "prefer_standard": true
    }
  }
}

However this settings file has validation that runs on it, and when I use "disable": null I receive this error message:

Invalid settings in 'Packages/User/SublimeLinter.sublime-settings':
'linters' > 'rubocop' > 'disable': None is not of type 'boolean'

I tried using "disable": true and "disable": false, but neither of them makes this work, instead it just follows what the disable settings dictate. I also tried omitting disable for both and doing only prefer_standard and that's the same as having both active.