From 360d59428c4b74069c9760feedbff1f16048ba66 Mon Sep 17 00:00:00 2001
From: SunShine Chan <chenweican@gmail.com>
Date: Fri, 25 Jun 2021 14:20:39 +0800
Subject: [PATCH] [TD-4902] FIX -m parameter of taosdemo with letter-initial
 string (#6620)

* [TD-4902] FIX with 1 char

* Fix prompt of -m @ taosdemo
---
 src/kit/taosdemo/taosdemo.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/kit/taosdemo/taosdemo.c b/src/kit/taosdemo/taosdemo.c
index 38f0ecb219..0eac1518a7 100644
--- a/src/kit/taosdemo/taosdemo.c
+++ b/src/kit/taosdemo/taosdemo.c
@@ -982,9 +982,9 @@ static void parse_args(int argc, char *argv[], SArguments *arguments) {
       arguments->len_of_binary = atoi(argv[++i]);
     } else if (strcmp(argv[i], "-m") == 0) {
       if ((argc == i+1) ||
-        (!isStringNumber(argv[i+1]))) {
+        (isStringNumber(argv[i+1]))) {
         printHelp();
-        errorPrint("%s", "\n\t-m need a number following!\n");
+        errorPrint("%s", "\n\t-m need a letter-initial string following!\n");
         exit(EXIT_FAILURE);
       }
       arguments->tb_prefix = argv[++i];
-- 
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