From 52c395eb643fe17b8070a870063e5d6f36f08d3e Mon Sep 17 00:00:00 2001
From: TerrySolar <531012201@qq.com>
Date: Tue, 22 Oct 2019 01:40:37 +0800
Subject: [PATCH] fix panic when config value set 0 (#1723)

---
 pkg/terminal/config.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkg/terminal/config.go b/pkg/terminal/config.go
index fc1f8346..ff200c9b 100644
--- a/pkg/terminal/config.go
+++ b/pkg/terminal/config.go
@@ -123,6 +123,9 @@ func configureSet(t *Term, args string) error {
 			if err != nil {
 				return reflect.ValueOf(nil), fmt.Errorf("argument to %q must be a number", cfgname)
 			}
+			if n < 0 {
+				return reflect.ValueOf(nil), fmt.Errorf("argument to %q must be a number greater than zero", cfgname)
+			}
 			return reflect.ValueOf(&n), nil
 		case reflect.Bool:
 			v := rest == "true"