The Symfony 2.3 docs say that it is possible to customize global form errors (errors that appear at top of form that are not tied to a specific field).
http://symfony.com/doc/current/cookbook/form/form_customization.html#customizing-error-output
"You can also customize the error output for just one specific field type. For example, certain errors that are more global to your form (i.e. not specific to just one field) are rendered separately, usually at the top of your form..."
They go on to say that:
"To customize only the markup used for these errors, follow the same directions as above, but now call the block form_errors"
I am confused as to what they are talking about. It seems that their prior instructions already call the block "form_errors" so I am not sure what is different.
How do I customize just the global form errors (the individual form field errors should remain the same)?