That's not a bug, the tramp package supports emacs21 and xemacs21 only since emacs-snapshot comes with this version of tramp built-in.
-- Tramp Depend: line doesn't follow debian policy for Emacs https://launchpad.net/bugs/57918 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
