[Feature Request] when we typo, show error

[shinriyo]

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Is your feature request related to a problem? Please describe.

When typo likefvm fluter --version(forgot double-t) instead of fvm flutter --version command
It shows the result of fvm --version.

Describe the solution you'd like

I want the error message of typo.

Describe alternatives you've considered

Show like fluter option does not exist.

Additional context