Oh crap, please ignore and close this bug. I really should take a cup of coffee before submitting bugs. Not only the problem wasn't what I said, but lastfmsubmitd works well with spaces (replaces them with '+' signs, which are recognized by the server as spaces just like %20's), and if you would apply my patch it wouldn't work.
Fail. Fail. Fail. Sorry. -- Marcos Marado -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org