Bug in real.c rewrite

[Gabriel Dos Reis]

Neil Booth <neil@daikokuya.co.uk> writes:

| Richard Henderson wrote:-
| 
| > I recall now that this form of overflow is something that Alan Modra
| > talked me into at the time.  I'm now thinking that this is more trouble
| > that it's worth, trying to force a particular result for a value that's
| > technically undefined.  So I've reverted the change.
| 
| If something's contraversial there, could I suggest you add an
| explanatory comment?  Otherwise it's the kinda thing that gets changed
| again 2 years down the line when everyone's forgotten the issues.

Seconded.

-- Gaby