Spotted this one while reading ifq_enqueue(9). s/struft/struct. I grepped the tree for "struft" and found one more in ifq_deq_begin(9).
Index: share/man/man9/ifq_deq_begin.9 =================================================================== RCS file: /cvs/src/share/man/man9/ifq_deq_begin.9,v retrieving revision 1.4 diff -u -p -r1.4 ifq_deq_begin.9 --- share/man/man9/ifq_deq_begin.9 29 May 2020 03:06:09 -0000 1.4 +++ share/man/man9/ifq_deq_begin.9 20 Mar 2021 18:50:38 -0000 @@ -24,7 +24,7 @@ .Nd dequeue an mbuf from an interface sending queue .Sh SYNOPSIS .In net/if_var.h -.Ft struft mbuf * +.Ft struct mbuf * .Fn ifq_deq_begin "struct ifqueue *ifq" .Ft void .Fn ifq_deq_commit "struct ifqueue *ifq" "struct mbuf *m" Index: share/man/man9/ifq_enqueue.9 =================================================================== RCS file: /cvs/src/share/man/man9/ifq_enqueue.9,v retrieving revision 1.11 diff -u -p -r1.11 ifq_enqueue.9 --- share/man/man9/ifq_enqueue.9 28 Aug 2020 09:15:16 -0000 1.11 +++ share/man/man9/ifq_enqueue.9 20 Mar 2021 18:50:38 -0000 @@ -34,7 +34,7 @@ .In net/if_var.h .Ft int .Fn ifq_enqueue "struct ifqueue *ifq" "struct mbuf *m" -.Ft struft mbuf * +.Ft struct mbuf * .Fn ifq_dequeue "struct ifqueue *ifq" .Ft unsigned int .Fn ifq_purge "struct ifqueue *ifq"