The BRO option was deprecated because it used net/GeoIP. It has been converted to use net/libmaxminddb (GeoIP 2 format) and is no longer deprecated. The patch undeprecates the BRO option.
Created attachment 202000 [details] patch
A commit references this bug: Author: bofh Date: Thu Feb 14 11:50:56 UTC 2019 New revision: 492914 URL: https://svnweb.freebsd.org/changeset/ports/492914 Log: security/barnyard2: Undeprecate BRO option PR: 235723 Submitted by: leres Changes: head/security/barnyard2/Makefile