32_SYSSTAT.pm: set snmp session timeout to two seconds (instead of the default 5 seconds)

git-svn-id: svn://svn.code.sf.net/p/fhem/code/trunk@9261 2b470e98-0d58-463d-a4d8-8e2adae1ed80

fhem/FHEM/32_SYSSTAT.pm

@@ -139,6 +139,7 @@ SYSSTAT_InitSNMP($)
   } elsif ( !defined($session) ) {
     Log3 $name, 2, "$name: can't connect to host $host";
   } else {
+    $session->timeout(3);
     $hash->{session} = $session;
   }
 }