Fixed #23736 -- Corrected the description of the value that silent_variable_failure uses.

  propagated, unless the exception has an attribute

  ``silent_variable_failure`` whose value is ``True``. If the exception

  *does* have a ``silent_variable_failure`` attribute whose value is

  ``True``, the variable will render as an empty string. Example::

  ``True``, the variable will render as the value of the

  :setting:`TEMPLATE_STRING_IF_INVALID` setting (an empty string, by default).

  Example::

    >>> t = Template("My name is {{ person.first_name }}.")

    >>> class PersonClass3:

  silently.

* A variable can only be called if it has no required arguments. Otherwise,

  the system will return an empty string.

  the system will return the value of :setting:`TEMPLATE_STRING_IF_INVALID`.

.. _alters-data-description: