Wrong documentation for theme hook

The documentation in the advanced help itself says:

All topics are addressed by the module providing the topic, and by the topic id. To embed links, use the following format:

$output .= theme('advanced_help_topic', $module, $topic);

This is wrong. To embed links the theme call must be:

$output .= theme('advanced_help_topic', array('module' => $module, 'topic' => $topic));