From e01fc30a92d5bd027b58a26a2cc0ae5f6400dca2 Mon Sep 17 00:00:00 2001
From: wangmm0220 <wangmm0220@gmail.com>
Date: Fri, 10 Sep 2021 12:08:26 +0800
Subject: [PATCH] [TD-5992}<fix>:optimize

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

diff --git a/src/client/src/tscSystem.c b/src/client/src/tscSystem.c
index 63741e08f4..9fea38c64e 100644
--- a/src/client/src/tscSystem.c
+++ b/src/client/src/tscSystem.c
@@ -478,7 +478,7 @@ static setConfRet taos_set_config_imp(const char *config){
     if(!taosReadConfigOption(item->string, item->valuestring, NULL, NULL, TAOS_CFG_CSTATUS_OPTION, TSDB_CFG_CTYPE_B_CLIENT)){
       ret.retCode = SET_CONF_RET_ERR_PART;
       if (strlen(ret.retMsg) == 0){
-        snprintf(ret.retMsg, RET_MSG_LENGTH - 1, "part error|%s", item->string);
+        snprintf(ret.retMsg, RET_MSG_LENGTH, "part error|%s", item->string);
       }else{
         int leftSize = RET_MSG_LENGTH - 1 - strlen(ret.retMsg);
         leftSize = leftSize >= 0 ? leftSize : 0;
-- 
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