From 7e4fa80c9629ac582523d4ee84e32196d6169ae2 Mon Sep 17 00:00:00 2001
From: "C. McEnroe" <june@causal.agency>
Date: Thu, 10 Jun 2021 19:38:12 -0400
Subject: [PATCH] Avoid trailing comma in whois channels lists

The format of the reply is defined as "<nick> :{[@|+]<channel><space>}".
---
 handle.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/handle.c b/handle.c
index 012b4ea..844fb74 100644
--- a/handle.c
+++ b/handle.c
@@ -1082,6 +1082,7 @@ static void handleReplyWhoisChannels(struct Message *msg) {
 	char *ptr = buf, *end = &buf[sizeof(buf)];
 	while (msg->params[2]) {
 		char *channel = strsep(&msg->params[2], " ");
+		if (!channel[0]) break;
 		char *name = &channel[strspn(channel, network.prefixes)];
 		ptr = seprintf(
 			ptr, end, "%s\3%02d%s\3",