[PATCH 3/5] manual: Document error codes missing for 'if_nametoindex'

[Florian Weimer]

* Maciej W. Rozycki:

> Index: glibc/manual/socket.texi
> ===================================================================
> --- glibc.orig/manual/socket.texi
> +++ glibc/manual/socket.texi

> +@item ENOSYS
> +This function is not implemented.
> +@end table

Likewise, I don't think we should document ENOSYS.

Thanks,
Florian