From aa969b7ff72fd540257558d09fdaa8507216542f Mon Sep 17 00:00:00 2001
From: Shivaram Lingamneni <slingamn@cs.stanford.edu>
Date: Sun, 5 Sep 2021 20:14:13 -0400
Subject: [PATCH 1/2] fix #1530

Warn if the user sent, e.g., /QUOTE /SAMODE instead of /QUOTE SAMODE
---
 irc/handlers.go | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/irc/handlers.go b/irc/handlers.go
index 88774b7d..cbacabd9 100644
--- a/irc/handlers.go
+++ b/irc/handlers.go
@@ -3531,7 +3531,15 @@ func zncHandler(server *Server, client *Client, msg ircmsg.Message, rb *Response
 
 // fake handler for unknown commands
 func unknownCommandHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
-	rb.Add(nil, server.name, ERR_UNKNOWNCOMMAND, client.Nick(), utils.SafeErrorParam(msg.Command), client.t("Unknown command"))
+	var message string
+	if strings.HasPrefix(msg.Command, "/") {
+		message = fmt.Sprintf(client.t("Unknown command; if you are using /QUOTE, the correct syntax is /QUOTE %s, not /QUOTE %s"),
+			strings.TrimPrefix(msg.Command, "/"), msg.Command)
+	} else {
+		message = client.t("Unknown command")
+	}
+
+	rb.Add(nil, server.name, ERR_UNKNOWNCOMMAND, client.Nick(), utils.SafeErrorParam(msg.Command), message)
 	return false
 }
 

From ffb5e4f98621d155f46f174c20a70e0b631b7598 Mon Sep 17 00:00:00 2001
From: Shivaram Lingamneni <slingamn@cs.stanford.edu>
Date: Sun, 5 Sep 2021 20:15:42 -0400
Subject: [PATCH 2/2] bump irctest

---
 irctest | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/irctest b/irctest
index 125a1cc1..f86e11a2 160000
--- a/irctest
+++ b/irctest
@@ -1 +1 @@
-Subproject commit 125a1cc106655b8c34705fd74a2704fccb8ec91e
+Subproject commit f86e11a288a88e2016d579c7a4bbb3c58869f879