Bug 36948: Resolve SIP issues in D12

My Koha testing docker SIP started dying repeatedly after launch. After investigation, I
found it was a problem with logging and default ports.

In D12 there is no syslog anymore, everythign uses journal. Four our purposes, lets log SIP issues
to sip.log by default

Attaching a patch to clear things up.

To test:
1 - Open KTD/D12
2 - tail -f /var/log/koha/kohadev/*.log
3 - On another terminal 'restart_all'
4 - Wait a bit, notice SIP dying
5 - Apply patch
6 - Update SIPconfig:
    server-params:
    log_file='/var/log/koha/kohadev/sip.log'
    service with port 8023:
    port="127.0.0.1:8023/tcp"
7 - Restart all
8 - Confirm SIP no longer dies

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
(cherry picked from commit 5dc1ec387d)
Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>

C4/SIP/Trapper.pm

@@ -35,6 +35,10 @@ sub PRINT {
     $Log::Log4perl::caller_depth--;
 }
 
+sub OPEN {
+    return 1;
+}
+
 =head2 BINMODE
 
     Suppress errors from Log::Log4perl::Appender::Screen

debian/templates/SIPconfig.xml

@@ -10,7 +10,7 @@
   <server-params
     min_servers='1'
     min_spare_servers='0'
-    log_file='Sys::Syslog'
+    log_file='/var/log/koha/__KOHASITE__/sip.log'
     syslog_ident='koha_sip'
     syslog_facility='local6'
   />
@@ -23,7 +23,7 @@
       protocol="NCIP/1.0" />
 -->
     <service
-      port="8023/tcp"
+      port="127.0.0.1:8023/tcp"
       transport="telnet"
       protocol="SIP/2.00"
       timeout="60" />