From 83843a532df6ca781a3490e6c90721d1a3d9eeb6 Mon Sep 17 00:00:00 2001
From: vicluq <victoria.tewari@gmail.com>
Date: Wed, 6 Nov 2024 19:19:54 -0300
Subject: [PATCH] fixed panic when keyvals len equals 1

---
 pkg/kgo/logger.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pkg/kgo/logger.go b/pkg/kgo/logger.go
index bfc5dc0d..a98c595a 100644
--- a/pkg/kgo/logger.go
+++ b/pkg/kgo/logger.go
@@ -89,7 +89,9 @@ func (b *basicLogger) Log(level LogLevel, msg string, keyvals ...any) {
 	if len(keyvals) > 0 {
 		buf.WriteString("; ")
 		format := strings.Repeat("%v: %v, ", len(keyvals)/2)
-		format = format[:len(format)-2] // trim trailing comma and space
+		if len(format) > 1 {
+			format = format[:len(format)-2] // trim trailing comma and space
+		}
 		fmt.Fprintf(buf, format, keyvals...)
 	}