include/features.h: various fixes

[Ulrich Drepper]

"Maciej W. Rozycki" <macro@ds2.pg.gda.pl> writes:

>  The current version of include/features.h gets a few bits wrong.  The
> following patch fixes them.

Thanks, I've used most of the patch.  It'll be in 2.1.92.

-- 
---------------.                          ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Red Hat          `--' drepper at redhat.com   `------------------------