fix(whatchguard) maxint issue

centreon-plugins/network/watchguard/snmp/mode/policyusage.pm

@@ -123,6 +123,11 @@ sub manage_selection {
             next;
         }
 
+        # Must be a Watchguard bug, where wgPolicyCurrActiveConns sporadically returns 2^32−1...
+        if ($result->{wgPolicyCurrActiveConns} == 4294967295) {
+            $result->{wgPolicyCurrActiveConns} = 0;
+        }
+        
         $self->{policy}->{$instance} = { display => $result->{wgPolicyName}, 
             %$result
         };