[PATCH] Report dlsym, dlvsym lookup errors using dlerror [BZ #19509]

[Florian Weimer]

* Carlos O'Donell:

> I expect you are suggesting this change for 2.24 and not "right now"
> for the upcoming release?

Yes, all patches are for after 2.24 branches.  I'm familiar with the
concept of a freeze. :)

> I fear the change might change something of consequence and I'd
> rather the checkin wait until Adhemerval cuts the branch on the
> 18th.

Absolutely.

Florian