prevent search form submiting with not enougth arguments

sites/all/modules/figli/edlp_search/src/Form/EdlpSearchForm.php

@@ -109,6 +109,9 @@ class EdlpSearchForm extends FormBase {
    */
   public function validateForm(array &$form, FormStateInterface $form_state) {
     parent::validateForm($form, $form_state);
+    // if (strlen($form_state->getValue('keys')) < 3) {
+    //   $form_state->setErrorByName('keys', $this->t('Search string is to short. Please enter more than 3 characters.'));
+    // }
   }
 
   /**