From 1b05b7b4e5ceada061e2c43f511570786b0dc9ab Mon Sep 17 00:00:00 2001
From: Ilia Rostovtsev <ilia@rostovtsev.io>
Date: Mon, 23 Aug 2021 19:09:16 +0300
Subject: [PATCH] Use `undef` instead of `0`
 https://github.com/webmin/webmin/pull/1513#discussion_r694106675

---
 mysql/backup.pl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mysql/backup.pl b/mysql/backup.pl
index ab9c5fadf..2ecae607e 100755
--- a/mysql/backup.pl
+++ b/mysql/backup.pl
@@ -98,7 +98,7 @@ foreach $db (@dbs) {
 				"root",
 				$config{'backup_single_'.$sf},
 				$config{'backup_quick_'.$sf},
-				0,
+				undef,
 				$config{'backup_parameters_'.$sf}
 			       );
 	if ($err) {