Re: snan tests: Avoid test failure on Android.

[Bruno Haible via Gnulib discussion list]

Collin Funk wrote:
> Likewise, the fenv-rounding tests fail in the same places as FreeBSD and
> OpenBSD.
> 
> Patch attached.

Thanks. The change looks good. But please also update
doc/posix-functions/fesetround.texi.

Bruno