[PATCH] CVE-2018-19591: if_nametoindex: Fix descriptor for overlong name [BZ #23927]

[Florian Weimer]

* Victor Rodriguez:

> Thanks for the fix, is this going to be in master?
> Can we take this patch as CVE fix?

I've pushed this to master now.  There's going to be test cases later.

Thanks,
Florian