net/tcpmssd: use PF_DIVERT on FreeBSD 14

to avoid runtime warning.

Approved by:	mikael

net/tcpmssd/Makefile

@@ -1,5 +1,6 @@
 PORTNAME=	tcpmssd
 PORTVERSION=	1.1
+PORTREVISION=	1
 CATEGORIES=	net
 MASTER_SITES=	# none
 DISTFILES=	# none

net/tcpmssd/files/tcpmssd.c

@@ -123,7 +123,11 @@ main(int argc, char *argv[])
 		/* NOTREACHED */
 	}
 
+#ifdef PF_DIVERT
+	if ((s = socket(PF_DIVERT, SOCK_RAW, 0)) == -1) {
+#else
 	if ((s = socket(PF_INET, SOCK_RAW, IPPROTO_DIVERT)) == -1) {
+#endif
 		err(1, "can't create divert socket");
 		/* NOTREACHED */
 	}