sysutils/rsyslog8: Mark broken

The upgrade to 8.2310.0 has resulted in a non-working version which
floods the log file with hundreds of messages and consumes all
available memory:

Oct 15 16:00:54 BSDHelmut rsyslogd[29360] imuxsock: recvfrom UNIX: Socket operation on non-socket [v8.2310.0]

Other reports show rsyslog attempting to use Linux /proc which also
fails.

Mark broken temporarily pending a response from upstream..

See rsyslog/rsyslog#5241

PR:		274509
Reported by:	Helmut Ritter

sysutils/rsyslog8/Makefile

@@ -1,12 +1,15 @@
 PORTNAME=	rsyslog
 PORTVERSION=	8.2310.0
+PORTREVISION=	1
 CATEGORIES=	sysutils
 MASTER_SITES=	http://www.rsyslog.com/files/download/rsyslog/
 
 MAINTAINER=	matthew@FreeBSD.org
 COMMENT=	Syslogd supporting SQL, TCP, and TLS
 WWW=		https://www.rsyslog.com/
 
+BROKEN=		"Socket operation on non-socket" See PR 274509
+
 LICENSE=	GPLv3 LGPL3 APACHE20
 LICENSE_COMB=	multi