ISTWCMS-5886: fixing error message when validating urls

uw_cfg_common.module

@@ -985,7 +985,7 @@ function _uw_cfg_common_alias_validate(array &$form, FormStateInterface $form_st
   ) {
 
     // Set an error message if alias exists.
-    $form_state->setError($form['path']['widget'][0]['alias'], t('@url cannot be an alias', ['@url' => $alias]));
+    $form_state->setError($form['path']['widget'][0]['alias'], t('@url cannot be an alias.', ['@url' => $alias]));
   }
 }