Comment 10 for bug 407779

It's actually not that hard to add a simple man page if anyone wants to do it. It looks like it's just a matter of adding the man page at debian/manpages/add-apt-repository.1. I've already done this for another command in the software-properties package which also doesn't have a man page (software-properties-gtk, see bug #290308) so I should be able to attempt this once I get some free time. But if anyone else wants to they can try to write their own man page in the mean time and post the patch here.