mail/spamassassin, japanese/spamassassin: fix bug with dns/p5-Net-DNS change

Now that a port dns/p5-Net-DNS has been upgraded to version 1.01,
this revealed an incompatibility with DNS resolving in SpamAssassin.

In short: Net::DNS::Packet->new no longer sets the RD (recursion
desired) bit in new packets, so essentially DNS queries no longer
work. Details at:
  https://bz.apache.org/SpamAssassin/show_bug.cgi?id=7223

To bridge the time until SpamAssassin 3.4.2 gets released,
the attached patch is needed ( equivalent to
  https://svn.apache.org/viewvc?view=rev&rev=1691992 ).

For earlier version of dns/p5-Net-DNS this patch is redundant,
but does no harm.

PR:		201741
Submitted by:	Mark.Martinec@ijs.si

japanese/spamassassin/Makefile

@@ -1,7 +1,7 @@
 # Created by: TAOKA Fumiyoshi
 # $FreeBSD$
 
-PORTREVISION=	0
+PORTREVISION=	1
 CATEGORIES=	japanese mail perl5
 PKGNAMEPREFIX=	ja-
 

mail/spamassassin/Makefile

@@ -3,7 +3,7 @@
 
 PORTNAME=	spamassassin
 PORTVERSION=	3.4.1
-PORTREVISION?=	1	# also bump japanese/spamassassin
+PORTREVISION?=	2	# also bump japanese/spamassassin
 CATEGORIES?=	mail perl5
 MASTER_SITES=	APACHE/spamassassin/source CPAN/Mail
 DISTNAME=	Mail-SpamAssassin-${PORTVERSION}

mail/spamassassin/files/patch-DnsResolver.pm

@@ -0,0 +1,12 @@
+--- lib/Mail/SpamAssassin/DnsResolver.pm	2015/07/20 18:23:18	1691991
++++ lib/Mail/SpamAssassin/DnsResolver.pm	2015/07/20 18:24:48	1691992
+@@ -592,6 +592,9 @@
+   };
+ 
+   if ($packet) {
++    # RD flag needs to be set explicitly since Net::DNS 1.01, Bug 7223	
++    $packet->header->rd(1);
++
+   # my $udp_payload_size = $self->{res}->udppacketsize;
+     my $udp_payload_size = $self->{conf}->{dns_options}->{edns};
+     if ($udp_payload_size && $udp_payload_size > 512) {