security/sshguard: Upgrade to 2.4.2

Major changes:
    * Recognize rejections from Postfix's postscreen daemon
    * The parser can now be changed using the PARSER and POST_PARSER options
    * Remove some false positive attack signatures for SSH and Cyrus
    * Adjust log verbosity of some log messages
    * The firewalld backend now uses firewall-cmd instead of iptables to flush block lists

Full changelog : https://bitbucket.org/sshguard/sshguard/src/v2.4.2/CHANGELOG.rst

PR:			256575
Reported by:	<sirdice@gmail.com>
Approved by:	Kevin Zheng <kevinz5000@gmail.com> (maintainer)

security/sshguard/Makefile

@@ -1,7 +1,7 @@
 # Created by: Mij <mij@bitchx.it>
 
 PORTNAME=	sshguard
-PORTVERSION=	2.4.1
+PORTVERSION=	2.4.2
 PORTEPOCH=	1
 CATEGORIES=	security
 MASTER_SITES=	SF/sshguard/sshguard/${PORTVERSION}

security/sshguard/distinfo

@@ -1,3 +1,3 @@
-TIMESTAMP = 1596260072
-SHA256 (sshguard-2.4.1.tar.gz) = 875d02e6e67dced614790ed5e36aef1160edea940f353a79306cbb1852af3c67
-SIZE (sshguard-2.4.1.tar.gz) = 723940
+TIMESTAMP = 1622991099
+SHA256 (sshguard-2.4.2.tar.gz) = 2770b776e5ea70a9bedfec4fd84d57400afa927f0f7522870d2dcbbe1ace37e8
+SIZE (sshguard-2.4.2.tar.gz) = 835431

security/sshguard/files/patch-src_sshguard.in

@@ -1,10 +1,10 @@
---- src/sshguard.in.orig	2019-05-23 22:25:17 UTC
+--- src/sshguard.in.orig	2021-06-06 14:54:07 UTC
 +++ src/sshguard.in
-@@ -97,14 +97,8 @@ elif [ -z "$tailcmd" ]; then
+@@ -98,14 +98,8 @@ elif [ -z "$tailcmd" ]; then
      exit 1
  fi
  
--if [ ! -z "$PID_FILE" ]; then
+-if [ -n "$PID_FILE" ]; then
 -    if [ ! -e "$PID_FILE" ]; then
 -        echo "$$" > $PID_FILE
 -    else
@@ -15,5 +15,5 @@
 +# Already checked by rc(8)
 +echo "$$" > $PID_FILE
  
- # Make sure to kill entire process group (subshell) on exit/interrupts.
- trap "clean_and_exit" INT TERM
+ # Select PARSER from configuration file or use default. Add POST_PARSER from
+ # configuration file if it exists.