Index: wp-admin/includes/class-wp-list-table.php
===================================================================
--- wp-admin/includes/class-wp-list-table.php	(revision 41023)
+++ wp-admin/includes/class-wp-list-table.php	(working copy)
@@ -501,7 +501,7 @@
 	 *
 	 * @since 3.1.0
 	 *
-	 * @global wpdb      $wpdb
+	 * @global wpdb      $wpdb      WordPress database abstraction object.
 	 * @global WP_Locale $wp_locale
 	 *
 	 * @param string $post_type