Add to use helper function to create timestamped trans files

backup-config/backup-config-lib.pl

@@ -300,9 +300,8 @@ if ($mode == 0) {
 	$file = &date_subs($path);
 	}
 else {
-	my $fdate = strftime('%Y-%m-%d_%H-%M-%S', localtime());
 	my $ext = &has_command("gzip") ? '.tar.gz' : '.tar';
-	$file = &transname("backup_$fdate$ext");
+	$file = &transname_timestamped("backup", $ext);
 	}
 
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