(crashreport) PHP Warning: in_array() expects parameter 2 to be array, null...

(crashreport) PHP Warning:  in_array() expects parameter 2 to be array, null given in /usr/local/www/vpn_openvpn_csc.php on line 406

(cherry picked from commit d26cbd66)

src/www/vpn_openvpn_csc.php

@@ -73,7 +73,7 @@ if ($_SERVER['REQUEST_METHOD'] === 'GET') {
         }
     }
     // servers => array
-    $pconfig['ovpn_servers'] = explode(',', $pconfig['ovpn_servers']);
+    $pconfig['ovpn_servers'] = empty($pconfig['ovpn_servers']) ? array() : explode(',', $pconfig['ovpn_servers']);
 } elseif ($_SERVER['REQUEST_METHOD'] === 'POST') {
     $input_errors = array();
     $pconfig = $_POST;