Git is great. I came from a background of using git. I've been using IBM's Rational Team Concert (RTC) for a while now at where i work.
After updating git, i got this particular error:
A good lesson learned on Friday (sure this is common sense) when doing drupal core / contrib updates: reduce the size of your commits.
Using Godaddy on shared host, it can be very difficult to use because you have limited access to ssh commands.
If you get this output where the tag needs to be fast forwarded: