diff --git src/wp-includes/category-functions.php src/wp-includes/category-functions.php
index 325264b..9a243da 100644
--- src/wp-includes/category-functions.php
+++ src/wp-includes/category-functions.php
@@ -39,7 +39,13 @@ function get_categories( $args = '' ) {
// Back compat
if ( isset($args['type']) && 'link' == $args['type'] ) {
- _deprecated_argument( __FUNCTION__, '3.0', '' );
+ _deprecated_argument( __FUNCTION__, '3.0',
+ sprintf(
+ __( 'The %1$s type is deprecated. Use %2$s instead.' ),
+ 'link
',
+ 'link_category
'
+ )
+ );
$taxonomy = $args['taxonomy'] = 'link_category';
}