Fix for missing wp_users-table error in wp-cron

class-tracking.php.patch

Index: inc/class-tracking.php
===================================================================
--- inc/class-tracking.php        (revision 734869)
+++ inc/class-tracking.php	(working copy)
@@ -110,7 +110,7 @@
 						'name'      => get_bloginfo( 'name' ),
 						'version'   => get_bloginfo( 'version' ),
 						'multisite' => is_multisite(),
-						'users'     => $wpdb->get_var( "SELECT COUNT(*) FROM wp_users INNER JOIN wp_usermeta ON (wp_users.ID = wp_usermeta.user_id) WHERE 1 = 1 AND ( wp_usermeta.meta_key = 'wp_{$blog_id}_capabilities' ) " ),
+						'users'     => $wpdb->get_var( "SELECT COUNT(*) FROM $wpdb->users AS u INNER JOIN $wpdb->usermeta AS m ON (u.ID = m.user_id) WHERE 1 = 1 AND ( m.meta_key = 'wp_{$blog_id}_capabilities' ) " ),
 						'lang'      => get_locale(),
 					),
 					'pts'      => $pts,