gnupg-2.4 breaks Emacs EasyPG

gnupg-2.4 breaks Emacs EasyPG (which does show up in test failures too, but IIRC it hangs at runtime as well).

Upstream don't intend on applying the fix to gnupg-2.4 so distributions will need to backport the gnupg patch (see below).

I haven't yet dug up the patch that gniibe mentions they sent to Emacs though.

Patch: https://dev.gnupg.org/rG2f872fa68c6576724b9dabee9fb0844266f55d0d
(https://git.gnupg.org/cgi-bin/gitweb.cgi?p=gnupg.git;a=commit;h=2f872fa68c6576724b9dabee9fb0844266f55d0d)

best,
sam