[xmonad] Patch to fix dbus-send in XMonad.Config.Gnome

* Fix dbus-send call in XMonad.Config.Gnome dbus-send --print-reply=string is invalid, but it was silently ignored until recently: http://cgit.freedesktop.org/dbus/dbus/commit/tools/dbus-send.c?id=c690ee4351... I've changed XMonad.Config.Gnome to run --print-reply=literal, since that's what the old behavior was. http://cgit.freedesktop.org/dbus/dbus/commit/tools/dbus-send.c?id=c690ee4351...