Changing settings using `setting set -p plugin.path.Foo VAR VALUE` doesn't work

[augray]

We have docs that reference adding settings for specific plugins, ex:

sematic settings set -p sematic.plugins.publishing.slack.SlackPublisher SLACK_WEBHOOK_TOKEN XXX/YYY/ZZZ

But actually using -p gives:

ERROR: -p :: Unrecognized option: -p