From 43479146338948434f0b08ef854c96281ee0f268 Mon Sep 17 00:00:00 2001
From: Dietmar Maurer <dietmar@proxmox.com>
Date: Fri, 4 Sep 2015 08:52:57 +0200
Subject: [PATCH 1/1] get_options: avoid warning for -list format

---
 src/PVE/JSONSchema.pm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/PVE/JSONSchema.pm b/src/PVE/JSONSchema.pm
index 47aa278..32d461c 100644
--- a/src/PVE/JSONSchema.pm
+++ b/src/PVE/JSONSchema.pm
@@ -1139,7 +1139,7 @@ sub get_options {
 		if ($pd->{format} =~ m/-list/) {
 		    # allow --vmid 100 --vmid 101 and --vmid 100,101
 		    # allow --dow mon --dow fri and --dow mon,fri
-		    $opts->{$p} = join(",", @{$opts->{$p}});
+		    $opts->{$p} = join(",", @{$opts->{$p}}) if ref($opts->{$p}) eq 'ARRAY';
 		} elsif ($pd->{format} =~ m/-alist/) {
 		    # we encode array as \0 separated strings
 		    # Note: CGI.pm also use this encoding
-- 
2.39.2