feat(void command): support -h and --help for auto-generated commands
#929
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The `void commands` are auto-generated commands to be able to show the help when there exist a sub-command, but no command was defined at this level (e.g. `omni a b` is defined, but `omni a` isn't). So far, calling `omni a --help` or `omni a -h` in that situation would simply fail (and suggest, using `Did you mean?`, to call `omni a b`). This changes that behavior by supporting the special `-h` and `--help` arguments if these are the only ones being passed to a void command, thus triggering to show the help message for that auto-generated command in that situation. Closes #920
-h and --help for auto-generated-h and --help for auto-generated commands
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The
void commandsare auto-generated commands to be able to show the help when there exist a sub-command, but no command was defined at this level (e.g.omni a bis defined, butomni aisn't).So far, calling
omni a --helporomni a -hin that situation would simply fail (and suggest, usingDid you mean?, to callomni a b). This changes that behavior by supporting the special-hand--helparguments if these are the only ones being passed to a void command, thus triggering to show the help message for that auto-generated command in that situation.Closes #920