docs: Small typo in libraries/validation/037.php

Small typo in libraries/validation/037.php

Author: obozdag

user_guide_src/source/libraries/validation/037.php

@@ -17,7 +17,7 @@ public function required_with($value, string $params, array $data): bool
 
         // Still here? Then we fail this test if
         // any of the fields are present in $data
-        // as $fields is the lis
+        // as $fields in the list
         $requiredFields = [];
 
         foreach ($params as $field) {