It looks like a fix for https://dev.gnupg.org/rGecfc4db3a2f8bc2652ba4ac4de5ca1cd13bfcbec was committed 4 years ago and is part of version 2.3.3 used for this port.
A commit in branch main references this bug: URL: https://cgit.FreeBSD.org/ports/commit/?id=6936b345a23fbb37e0986912c25c514a5713eaae commit 6936b345a23fbb37e0986912c25c514a5713eaae Author: Adriaan de Groot <adridg@FreeBSD.org> AuthorDate: 2022-03-28 19:08:49 +0000 Commit: Adriaan de Groot <adridg@FreeBSD.org> CommitDate: 2022-03-28 19:17:34 +0000 security/gnupg: remove unnecessary pkg-message There were installation instructions that dated from ~2017 which are no longer relevant after a fix was applied upstream. An IPv4 host connecting to a dual-stack hks server now gets a meaningful errno and retries the connection (as IPv4 only). Reported by: Pau Amma PR: 262881 security/gnupg/Makefile | 4 +--- security/gnupg/files/pkg-message.in (gone) | 16 ---------------- 2 files changed, 1 insertion(+), 19 deletions(-)
Seems correct, thanks! (I don't see pkg install messages very often ..)