routing, fix typo

(cherry picked from commit ecb715c3)

src/opnsense/mvc/app/controllers/OPNsense/Diagnostics/Api/InterfaceController.php

@@ -109,7 +109,7 @@ class InterfaceController extends ApiControllerBase
     public function getRoutesAction()
     {
         $backend = new Backend();
-        if (empty($this->request->get('resolve', null))) {
+        if (empty($this->request->get('resolve'))) {
             $response = $backend->configdpRun("interface routes list -n json");
         } else {
             $response = $backend->configdpRun("interface routes list json");
@@ -120,9 +120,9 @@ class InterfaceController extends ApiControllerBase
             $intfmap = $this->getInterfaceNames();
             foreach ($routingtable as &$routingentry) {
                 if (array_key_exists($routingentry['netif'], $intfmap)) {
-                    $ndpentry['intf_description'] = $intfmap[$routingentry['netif']];
+                    $routingentry['intf_description'] = $intfmap[$routingentry['netif']];
                 } else {
-                    $ndpentry['intf_description'] = "";
+                    $routingentry['intf_description'] = "";
                 }
             }
         }