I don't want to introduce this change because people write their forms in different ways. And by experience I know it pisses people off to correct the coding style of a snippet every time because it does not match what they want.
``` php
$builder->add(/* … */);
$builder->add(/* … */);
// or
$builder
    ->add(/* … */)
    ->add(/* … */)
;
// or
$builder->add(/* … */)
    ->add(/* … */);
```