Fixed typos.

module/VuFind/src/VuFind/Controller/PrimorecordController.php

@@ -59,7 +59,7 @@ class PrimorecordController extends AbstractRecord
      */
     protected function resultScrollerActive()
     {
-        $config = $this->getServiceLocator()->get('VuFind\Config')->get('Summon');
+        $config = $this->getServiceLocator()->get('VuFind\Config')->get('Primo');
         return (isset($config->Record->next_prev_navigation)
             && $config->Record->next_prev_navigation);
     }

module/VuFind/src/VuFind/Search/Primo/Params.php

@@ -49,7 +49,7 @@ class Params extends \VuFind\Search\Base\Params
         $backendParams = new ParamBag();
 
         // The "relevance" sort option is a VuFind reserved word; we need to make
-        // this null in order to achieve the desired effect with Summon:
+        // this null in order to achieve the desired effect with Primo:
         $sort = $this->getSort();
         $finalSort = ($sort == 'relevance') ? null : $sort;
         $backendParams->set('sort', $finalSort);