Is this necessary? If we are to have that in the debug-channel it would be more interesting to pass it inside a proper channel, WITH the arguments, and not in the global debug-channel.

For testing output that is left in (i.e. because stuff is semi-implemented), we tend to use warning(), since that will print even when debug channels are disabled. (Makes for a good way to i.e. tell us that some opcode is stubbed for instance).