RFR: skara: add -v, --version and -h, --help

[Robin Westberg]

On Fri, 4 Sep 2020 08:48:47 GMT, Erik Helin <ehelin at openjdk.org> wrote:

> Hi all,
> 
> please review this patch that adds the `-v`, `--version`, `-h` and `--help` flags to `git skara`. I also made sure that
> we don't print out the `debug` command, as it is only intended to be used by Skara developers.
> Thanks,
> Erik

Looks good!

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Marked as reviewed by rwestberg (Reviewer).

PR: https://git.openjdk.java.net/skara/pull/776