Updated docstring for firstof tag to reflect new auto-escaping behavior.

        {% firstof var1 var2 var3 "fallback value" %}

    If you want to escape the output, use a filter tag::

    If you want to disable auto-escaping of variables you can use::

        {% filter force_escape %}

            {% firstof var1 var2 var3 "fallback value" %}

        {% endfilter %}

        {% autoescape off %}

            {% firstof var1 var2 var3 "<strong>fallback value</strong>" %}

        {% autoescape %}

    Or if only some variables should be escaped, you can use::

        {% firstof var1 var2|safe var3 "<strong>fallback value</strong>"|safe %}

    """

    bits = token.split_contents()[1:]