Return empty array instead of false from get_editable_user_ids. Props Denis-de-Bernardy, pairg. fixes #10119 for 2.8.1

git-svn-id: http://svn.automattic.com/wordpress/branches/2.8@11572 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/includes/user.php

@@ -253,7 +253,7 @@ function get_editable_user_ids( $user_id, $exclude_zeros = true, $post_type = 'p
 		if ( $user->has_cap("edit_{$post_type}s") || $exclude_zeros == false )
 			return array($user->id);
 		else
-			return false;
+			return array();
 	}
 
 	$level_key = $wpdb->prefix . 'user_level';