Fixes #21590 - Added error to wrong --output

[yifatmakias]

No description provided.

[theforeman-bot]

Can one of the admins verify this patch?

[ofedoren]

Thanks for contributing, @yifatmakias!

Although this addition doesn't prevent the users to run a command by showing an error, I think the better approach will be preventing with showing the right usage, since we don't support other output adapters.

I've already (accidentally) solve it as a part of #312 (see https://github.com/theforeman/hammer-cli/pull/312/files#diff-ebbb17d97d1fa6482776d9c9cad6c3fdL50-L54). If you agree that that's the better approach from the user perspective, you are free to use it within your PR :)

Also, some nitpicks inline and I think if we're going to stick with your solution, we could get rid of theforeman/hammer-cli-foreman#446 by adding output.print_output_type here.

[ofedoren]

Good update, @yifatmakias!

Just a few small nitpicks (see inline).

[ofedoren]

[test]

[ofedoren]

[test hammer]

[ofedoren]

All good now, thanks, @yifatmakias! Merging.