wp_list_cats( string|array $args = '' )

function wp_list_cats($args = '') {
	_deprecated_function( __FUNCTION__, 'WP-2.1.0', 'wp_list_categories()' );

	$r = wp_parse_args( $args );

	// Map to new names.
	if ( isset($r['optionall']) && isset($r['all']))
		$r['show_option_all'] = $r['all'];
	if ( isset($r['sort_column']) )
		$r['orderby'] = $r['sort_column'];
	if ( isset($r['sort_order']) )
		$r['order'] = $r['sort_order'];
	if ( isset($r['optiondates']) )
		$r['show_last_update'] = $r['optiondates'];
	if ( isset($r['optioncount']) )
		$r['show_count'] = $r['optioncount'];
	if ( isset($r['list']) )
		$r['style'] = $r['list'] ? 'list' : 'break';
	$r['title_li'] = '';

	return wp_list_categories($r);
}