Changes

* Now create a patch containing the changes you just made using the so called '''unified''' format (-u), with 8 lines of context. By default the diff is printed to stdout, so you should redirect it to a file. Typically patches are created from the top of your source directory (e.g., '''src/''') so that they can be easily applied later (i.e., people don't have to figure out where to apply the patch, and can just use their tree's root directory):

$ cd src