Setting multiple pf_fallback_rules in /etc/rc.conf as per the documentation produces invalid pf syntax due to the lack of echo quoting $pf_fallback_rules in /etc/rc.d/pf. Adding quotes around the $pf_fallback_rules echo maintains newlines needed for valid pfctl syntax. Provided patch resolves the issue Also updating rc.conf(5) to reflect that multi-line pf_fallback_rules should not include a trailing backslash (\) as line breaks are needed when passing rules to pfctl via stdin. PR: 288197 Reviewed by: kp MFC after: 2 weeks (cherry picked from commit 9e8c1f9576e75fcd34007c6e8a4a6da0b1b2f1e2)