fix: handle empty :Org arguments.

[DoloresHA]

Summary

Handles no arguments being used with :Org with standard echo error.

Related Issues

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Changes

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Checklist

I confirm that I have:

• Followed the
  Conventional Commits
  specification (e.g., feat: add new feature, fix: correct bug,
  docs: update documentation).
• My PR title also follows the conventional commits specification.
• Updated relevant documentation, if necessary.
• Thoroughly tested my changes.
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• Added tests (if applicable) and verified existing tests pass with
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• Checked for breaking changes and documented them, if any.

[kristijanhusak]

Nice! Let's just also update line 130 to ensure at least one argument is provided:

nargs = '+',

[kristijanhusak]

Nevermind, it's all good, thanks!