Label PRs with "bsd" in the title

[alyssais]

I haven't tested this beyond cargo test, because I don't really know how.

[r-burns]

Should we try to do something clever with word splitting so it doesn't match on e.g. "libsdl"?

[alyssais]

That would be better for sure, but exceeds the amount of energy I can put into this, since it would be changing quite a lot how this code works.

[cole-h]

I'd be happy to get this in in its current form (once my singular nit is addressed), even with the potential for false-positive labels. As unlikely as it is now, if somebody added a project by the name of darwini or sigmacosine, those would also be falsely tagged. As long as you're fine with the potential for noise in this label, this can be addressed later (when I or another interested party has time).

[cole-h]

I've let this grow long in the tooth, and I'm sorry about that.

I just pushed a commit that uses the regex crate so that we can match on word boundaries using the \b anchor. This is slightly more robust than just checking for the existence of the string "bsd" or "macos" or "darwin" in the title. (regex was already in our dependency tree, so it's almost free using it :)

I hope to merge this sometime soon (but for real this time).

[cole-h]

Thanks again :)