Admin readonly field help text show 'None'

[iici-gli]

The help_text_for_field function in contrib/admin/utils returns 'None' if field.help_text is None.
Needs to following statements:

       if hasattr(field, 'help_text'):
            help_text = field.help_text

TO:

     help_text = getattr(field, 'help_text', '')

[Tim Graham]

Is there a reason for using help_text=None as opposed to an empty string?

[Tim Graham]

Closing as "won't fix" pending a justification of why support for help_text=None is needed.