Hello and welcome to the forums. I don't have Mac but it's a lot different than the windows version. I.e. no -direct txt support. If you will provide the patchd2.mpq file, I can make you the rwm. You could also get wine and run the windows version.
You can still login to bnet as the Patch is client side. It shouldn't effect you and get you banned. But if you want to play it safe, just swap it out. Mac has no -direct -txt, so you can't just make a shortcut :/