all-your-base: Update outdated comment

[UnlimitedHummus]

This exercise was revised to use domain specific errors. However, a leftover comment still suggests, that the specific value in Err(.) won't be checked.

[github-actions]

Hello. Thanks for opening a PR on Exercism. We are currently in a phase of our journey where we have paused community contributions to allow us to take a breather and redesign our community model. You can learn more in this blog post. As such, all issues and PRs in this repository are being automatically closed.

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[senekor]

Hi @UnlimitedHummus

Thanks for the issue. Please post on the forum first, as the bot noted, but your input is appreciated.

I'm currently syncing all exercises derived from problem-specifications, I'll have a look at this in the process.

[senekor]

Thanks!