Formatted output of IEEE exceptional values

[Paul Thomas]

Harald,

We have a succint word in English for

> P.S.: if you want to have some fun, run the above code thru the Intel
> compiler ;-)

It's stuffed!

I have put that on my TODOs.  I happen to know where the action happens 
for that one, having been hit by the infinity problems with Cygwin.

I suppose that f3.0 and f8.0 is supposed to revert to the abbreviated 
format?

Thanks

Paul T