fix some more config handling for php 7.1, https://github.com/opnsense/core/issues/1733

src/etc/rc.expireaccounts

@@ -39,7 +39,7 @@ $count = count($config['system']['user']);
 $index = 0;
 
 for (; $index < $count; $index++) {
-	$user =& $config['system']['user'][$index];
+	$user =  &config_read_array('system', 'user', $index);
 	if($user['scope'] == "system")
 		continue;
 	echo "1\n";

src/etc/rc.initial.setlanip

@@ -214,7 +214,7 @@ function add_gateway_to_config($interface, $gatewayip, $inet_type, $is_in_subnet
         $config['gateways']['gateway_item'] = array();
     }
 
-    $a_gateways = &$config['gateways']['gateway_item'];
+    $a_gateways =  &config_read_array('gateways', 'gateway_item');
     $is_default = true;
     $new_name = '';