Some fuzzer workarounds

[Evgeny Vereshchagin]

Hi Mark,

> Great. Thanks for testing. All patches from the fuzz branch are now
> merged. My local fuzzer also hasn't found any new issues for almost 24
> hours now.

Thanks! I synced my fork with the elfutils repository and tonight it will be sent
to Coverity. If anything pops up I'll report it.

> Yeah that is:
> https://systemd.io/COREDUMP_PACKAGE_METADATA/
> https://fedoraproject.org/wiki/Changes/Package_information_on_ELF_objects

That looks familiar. As far as I can remember fuzz-dwfl-core was introduced to fuzz that
part of systemd.

Thanks,
Evgeny Vereshchagin