fix(cli): point at --help when arguments are invalid - #870
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Running `sqlformat` with no arguments (or any invalid argument combination handled by argparse) printed only the usage line and the error, giving no hint that `--help` exists. argparse's default `error()` is overridden in a small ArgumentParser subclass so every argument error is followed by "Try 'sqlformat --help' for more information." Exit code stays 2. Closes andialbrecht#840
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Closes #840
sqlformatwith no arguments printed only the usage line and the error, with no hint that--helpexists. A smallArgumentParsersubclass overrideserror()so every argument error is followed byTry 'sqlformat --help' for more information.Exit code stays 2.Before submitting your pull request please have a look at the
following checklist:
pytest)ruff)