[RFA] print arrays with indexes

[Joel Brobecker]

> My first reaction was that it would be confusing.  We'd have a variable
> to hold the threshold, and it would always show up in "show" or "help"
> output, but most of the time its value would be ignored.  The trickier
> something is to document accurately, the more likely it is to confuse
> users.

I also do not have a strong opinion, but I admit that having one
knob seems a bit simpler to me (in terms of the user interface).

-- 
Joel