[gits] importing code from other sources

[lbstoller at gmail.com (Leigh Stoller)]

So, CVS had a way of doing this.

I have some code that I imported from a foreign source and modified
to work locally.

Now I want to update from a more modern version of the imported code,
applying our local changes into that.

Is there a reasonable why to do this in git? 

Lbs