1200+ files with trailing whitespace does seem a bit excessive, however I don't know how large a "problem" it really is. If you're going to do whitespace cleanup I recommend starting small, like with mod_rtmp.c. Run your whitespace cleanup script on just a few files, recompile them, verify that it's all good, then commit & push. I don't know about the other devs, but I would feel much more comfortable with small, controlled updates than a large sweep that does a lot of files.