ARM testers, make note.

[Johannes Pfau]

Am Fri, 23 Aug 2013 01:34:39 +0200
schrieb Iain Buclaw <ibuclaw at ubuntu.com>:
> 
> Make Don aware of this. But looks ok to me.  Does it fail in the same
> way for double on x86/x86_64?

If I modify frexp to use double instead of real it also fails on
x86 in the same way:
http://dpaste.dzfl.pl/72725240


But the double code path is not used on x86. x86 always uses the real
version and therefore doesn't show this issue. I'll file a pull request
on github and ping Don about this.