Multiple maintainers are not being processed correctly

[lwasser]

If you look at this pr, you can notice that maintainer names are not being processed separately; rather, they are being combined into a single entry in an odd way.

We will need to debug pyosmeta to ensure that the data are being parsed correctly. It could be that

My guess looking at the submission, is that off, is it's because the maintainers are listed with no comma separation. I believe we split at the commas. we might want to make our workflow more flexible, but I worry that in some cases, people would include name GitHub username, name2 ... and then we'd be thrown off again.

You can also see this in the latest bot run that i kicked off here

cc'ing @pllim on this who raised the issue.