--format option not supported in CLI?

[shrinathaithal]

This option --format documentation is working if written in .rspec_parallel. However if I try this directly from terminal, I don't get it. Why?
This is the error from terminal -

.rvm/gems/ruby-3.0.3/gems/parallel_tests-4.10.1/lib/parallel_tests/cli.rb:318:in `parse_options!': invalid option: --format (OptionParser::InvalidOption)

I try searching cli.rb to see if it parses opts for --format, I don't see any line regarding format, other than a help comment somewhere in file. So we can't use this in cli? Was this a miss? Needs a PR?

[grosser]

it needs to go into --test-options for example --test-options '--format xyz'

[grosser]

added docs #1000