[Bro] a tree structure with Bro records -- traversal w/ callback (FYI)

[Vern Paxson]

> signatures must match *exactly* -- including the argument names. In
> the above case, the "i" and "j" cannot be different, they must be the
> same. The corrected version of the above would be

Yeah, that's something stupid from day-one when I first introduced functions
that I've never gotten around to fixing.  Sorry about the time spent puzzling
this out :-(.

		Vern