BuddyPress.org

The easiest way is to view the patch at the link you posted, then look for the green lines and edit the relevant file to add what is different from the red lines. Then modify your template to take advantage of the new “order” parameter.

That’s safer and more direct than trying to use the ‘patch’ command line tool, unless you’re familiar with that and have it on a system somewhere. Or, you can do a Google search on using ‘patch’ and try it that way.