docs: align comments

Author: kenjis

user_guide_src/source/libraries/validation/038.php

@@ -6,5 +6,5 @@
     'name' => "is_unique[supplier.name,uuid, {$uuid}]",  // is not ok
     'name' => "is_unique[supplier.name,uuid,{$uuid} ]",  // is not ok
     'name' => "is_unique[supplier.name,uuid,{$uuid}]",   // is ok
-    'name' => 'is_unique[supplier.name,uuid,{uuid}]',  // is ok - see "Validation Placeholders"
+    'name' => 'is_unique[supplier.name,uuid,{uuid}]',    // is ok - see "Validation Placeholders"
 ]);