net/iplog: Mark broken on 13-CURRENT

Also update maintainer's email.

PR:		248686
Submitted by:	Udo.Schweigert@siemens.com (maintainer)

net/iplog/Makefile

@@ -7,7 +7,7 @@ PORTREVISION=	3
 CATEGORIES=	net security
 MASTER_SITES=	SF/ojnk/${PORTNAME}/${PORTVERSION}
 
-MAINTAINER=	udo.schweigert@siemens.com
+MAINTAINER=	udo@schweigert-muc.de
 COMMENT=	TCP/IP traffic logging tool
 
 USES=		gmake
@@ -17,6 +17,12 @@ LDFLAGS+=	-lpthread -L${LOCALBASE}/lib
 
 USE_RC_SUBR=	iplog
 
+.include <bsd.port.options.mk>
+
+.if ${OSVERSION} >= 1300000
+IGNORE = The iplog port is broken for FreeBSD 13.x and above
+.endif
+
 post-patch:
 .for FILE in example-iplog.conf iplog.8 iplog.conf.5 src/iplog.h
 	@${REINPLACE_CMD} -e "s|%%PREFIX%%|${PREFIX}|g" ${WRKSRC}/${FILE}