[PATCH] stdio-common: Fix C23-ism in formatted output specifier tests [BZ #32360]

[Florian Weimer]

* Maciej W. Rozycki:

> Nameless function parameters have only been added to ISO C with the C23 
> revision of the language standard.  Give names to the unused parameters 
> of the stub 'dladdr' implementation then so as to make compilation happy 
> with the earlier language definitions, fixing errors such as:
>
> tst-printf-format-skeleton.c:374:9: error: parameter name omitted
>   374 | dladdr (const void *, Dl_info *)
>
> reported by older compilers.
> ---
> Hi,
>
>  Verified natively with `powerpc64le-linux-gnu' and GCC 14 as well as 
> `x86_64-linux-gnu' and GCC 6.  OK to apply?

Okay.

Reviewed-by: Florian Weimer <fweimer@redhat.com>

I'll send a patch next week to build with -Werror=missing-parameter-name
if the option exists.

Thanks,
Florian