I forked someone\'s repository on GitHub and would like to update my version with commits and updates made in the original repository. These were made after I forked my copy
In addition to VonC's answer, you could tweak it to your liking even further.
After fetching from the remote branch, you would still have to merge the commits. I would replace
$ git fetch upstream
with
$ git pull upstream master
since git pull is essentially git fetch + git merge.