Microsoft forks MIT licensed repo, and changes the copyright to them github.com/microsoft/grpc
It seems bot made the change but do you really want mega corporation doing this kind of critical stuff?
https://github.com/OpenPrinting/cups/issues/315
For reference, the current Hacker News discussion: https://news.ycombinator.com/item?id=29683471
It’s worth noting that some comments suspect it to be a misconfigured bot action.