This is introduced by commit aa61cff4249c. So I pick up the type "jd" as the fix where it used to work.
The error is /usr/src/sys/netinet/siftr.c:394:6: error: format specifies type 'ssize_t' (aka 'int') but the argument has type 'time_t' (aka 'long long') [-Werror,-Wformat]
pkt_node->tval.tv_sec,
^~~~~~~~~~~~~~~~~~~~~
1 error generated.
81.86 real 93.27 user 7.53 sys