From c2eac3297c1110feafeed96ad5d5b4fcb9cfc5d0 Mon Sep 17 00:00:00 2001
From: antao <antao2002@gmail.com>
Date: Wed, 26 Jun 2019 17:58:25 +0800
Subject: [PATCH] Fix a bug of the drogon_ctl command

---
 drogon_ctl/main.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drogon_ctl/main.cc b/drogon_ctl/main.cc
index 6aefc5cc..d067b385 100755
--- a/drogon_ctl/main.cc
+++ b/drogon_ctl/main.cc
@@ -31,8 +31,9 @@ int main(int argc, char *argv[])
     {
         args.push_back(argv[i]);
     }
-    for (auto &arg : args)
+    if (args.size() > 0)
     {
+        auto &arg = args[0];
         if (arg == "-h" || arg == "--help")
         {
             arg = "help";