From 26e9edddf264d175bfcfa0f05cc4e25e9ae745a1 Mon Sep 17 00:00:00 2001
From: sta <sta.blockhead@gmail.com>
Date: Sat, 2 May 2020 22:20:03 +0900
Subject: [PATCH] [Modify] Polish it

---
 websocket-sharp/Net/WebHeaderCollection.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/websocket-sharp/Net/WebHeaderCollection.cs b/websocket-sharp/Net/WebHeaderCollection.cs
index b5996b03..c2680e6b 100644
--- a/websocket-sharp/Net/WebHeaderCollection.cs
+++ b/websocket-sharp/Net/WebHeaderCollection.cs
@@ -1144,7 +1144,7 @@ namespace WebSocketSharp.Net
       var idx = header.IndexOf (':');
 
       if (idx == -1) {
-        var msg = "No colon could be found.";
+        var msg = "It does not contain a colon character.";
 
         throw new ArgumentException (msg, "header");
       }