mail/spampd: Update to 2.51 and refine rc script

- Include /usr/local/bin and /usr/local/sbin to PATH
  (this way pyzor and razor work, which wouldn't be used otherwise
  [debug output would show that they're silently skipped])
- support for sockets
- IPv6 support
- Fix injected X-Envelope-* headers so that spamassassin
  actually can pick them up for SPF and other checks
- support for sid (so patch-setsid not required anymore),
  toggled by --setsid (rc script always sets this
  so it doesn't break on update)
- new rc var (spampd_extra_flags), so it's easy to use
  the default setup and just add deltas in rc.conf like in:

  spampd_enable="YES"
  spampd_extra_flags="--sef"

PR:		227903
Approved by:	maintainer timeout

mail/spampd/Makefile

@@ -2,14 +2,13 @@
 # $FreeBSD$
 
 PORTNAME=	spampd
-PORTVERSION=	2.42
-PORTREVISION=	2
+PORTVERSION=	2.51
 CATEGORIES=	mail perl5
 
 MAINTAINER=	des@FreeBSD.org
 COMMENT=	Spamassassin SMTP Proxy
 
-LICENSE=	GPLv2
+LICENSE=	GPLv3
 
 RUN_DEPENDS=	spamc:mail/spamassassin \
 		p5-Net-Server>=0:net/p5-Net-Server

mail/spampd/distinfo

@@ -1,2 +1,3 @@
-SHA256 (mpaperno-spampd-2.42_GH0.tar.gz) = c6dcef8df0c471b3982e777bcccfe343f1f6f921113c2b369a76144724b1d15d
-SIZE (mpaperno-spampd-2.42_GH0.tar.gz) = 202504
+TIMESTAMP = 1525190858
+SHA256 (mpaperno-spampd-2.51_GH0.tar.gz) = 93cc3ef19ecff224ac00f6c7a0e028f059ec839703329f4567846b750964ac07
+SIZE (mpaperno-spampd-2.51_GH0.tar.gz) = 215462

mail/spampd/files/patch-setsid

@@ -1,11 +0,0 @@
---- spampd.pl.orig	2013-12-08 11:34:02 UTC
-+++ spampd.pl
-@@ -961,7 +961,7 @@ my $server = bless {
- 				syslog_ident => 'spampd',
- 				syslog_facility => 'mail',
- 				background => $background,
--				# setsid => 1,
-+				setsid => 1,
- 				pid_file => $pidfile,
- 				user => $user,
- 				group => $group,

mail/spampd/files/spampd.in

@@ -9,7 +9,11 @@
 #
 # spampd_enable (bool):		Set it to "YES" to enable spampd
 #				Default is "NO"
-# spampd_flags
+# spampd_flags:			Flags to spampd
+# spampd_extra_flags:		Additional flags, so one can
+#                               keep defaults in spampd_flags, e.g.
+#                               spampd_extra_flags="--sef" to add
+#                               "X-Envelope-From" header.
 
 . /etc/rc.subr
 
@@ -23,7 +27,7 @@ rcvar=spampd_enable
 load_rc_config $name
 
 command="%%PREFIX%%/sbin/$name"
-command_args="--pid=${spampd_pidfile}"
+command_args="--setsid --pid=${spampd_pidfile} ${spampd_extra_flags}"
 command_interpreter="%%PERL%% -T"
 pidfile="${spampd_pidfile}"