Replaced set-upstream with set-upstream-to to get rid of deprecation warnings when running grb publish
Fix set-upstream deprecation warnings
In the process of tweaking a few more things and I'll release in a bit.
Ok, gem version 0.3.5 is out. Thanks for the pull request!
Sorry about the code quality, btw. This was my first gem from years ago, which evolved from a one file script. I never got around to re-writing it properly :-)
No problem. What matters is it works!