Find the merge and pull request a commit came from, also finding straight cherry-picks.
gem install git-whence
or as standalone binary (needs any ruby)
curl https://rubinjam.herokuapp.com/pack/git-whence > git-whence && chmod +x git-whence
git-whence 6d37485 Merge pull request #10486 from foo/bar git-whence 6d37485 -o -> open browser on github pull request page