From 6b9b958e00c8a0eff64af255f790ee5bea40f197 Mon Sep 17 00:00:00 2001
From: antirez <antirez@gmail.com>
Date: Fri, 18 Jul 2014 10:15:51 +0200
Subject: [PATCH] PING: backward compatible error for wrong number of args.

---
 src/redis.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/redis.c b/src/redis.c
index 978e4731..d002c123 100644
--- a/src/redis.c
+++ b/src/redis.c
@@ -2403,7 +2403,8 @@ void authCommand(redisClient *c) {
 void pingCommand(redisClient *c) {
     /* The command takes zero or one arguments. */
     if (c->argc > 2) {
-        addReply(c,shared.syntaxerr);
+        addReplyErrorFormat(c,"wrong number of arguments for '%s' command",
+            c->cmd->name);
         return;
     }