app-antivirus/clamav: fix compatibility with >=zlib-1.2.9
Include patch from Marc Deslauriers <marc.deslauriers@canonical.com> to
fix compatibility with zlib newer 1.2.9 and enable test in ebuild (now
it work correctly).
(commit message cleaned up by Robin H. Johnson <robbat2@gentoo.org>)
Bug: https://bugs.launchpad.net/ubuntu/+source/clamav/+bug/
1692073
Closes: https://bugs.gentoo.org/638544
(cherry picked from commit
535d9b43c3472916bfb977921f0a10f2cc02dc4b)
Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>