Include most of elf/ modules-names in modules-names-tests

[Florian Weimer]

On 09/12/2018 02:15 PM, Joseph Myers wrote:
> +modules-names-tests = $(filter-out ifuncmod% tst-libc_dlvsym-dso tst-tlsmod%,\
> +				   $(modules-names))

Perhaps add a comment that the reliance on internal headers is the 
reason for filtering out these module names?

Patch looks fine to me otherwise.

Thanks,
Florian