From 797d4df6fdad17e9d5de9069970ee5a062cafe41 Mon Sep 17 00:00:00 2001
From: antirez <antirez@gmail.com>
Date: Fri, 26 Jan 2018 11:18:34 +0100
Subject: [PATCH] CG: XACK should return zero when nothing is processed.

---
 src/t_stream.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/t_stream.c b/src/t_stream.c
index 8de4dab67..3f87b5764 100644
--- a/src/t_stream.c
+++ b/src/t_stream.c
@@ -1412,7 +1412,7 @@ void xackCommand(client *c) {
 
     /* No key or group? Nothing to ack. */
     if (o == NULL || group == NULL) {
-        addReply(c,shared.cone);
+        addReply(c,shared.czero);
         return;
     }