<https://cgit.freebsd.org/src/commit/usr.sbin/config/main.c?id=34e703473cef0a882549b894a0593f28b76fb77e> was committed in 2006. <https://forums.freebsd.org/posts/341431> in 2017 suggested ignoring the reminder, which appears in response to make buildkernel. If the reminder is redundant: please consider removal from what appears on screen. Thanks.