From 7c0ae01d7b3582190b04335573866091295ab3ce Mon Sep 17 00:00:00 2001
From: dirk <dirk@git.imagemagick.org>
Date: Fri, 26 Aug 2016 12:49:28 +0200
Subject: [PATCH] Fixed check for message.

Former-commit-id: 60177850e28645374a56ba7da941663e46f5e872
Former-commit-id: 50fd3960da2e9396a51dd299da7c5f287b3624a1
Former-commit-id: 0d0a319ea55a40dcc451913cff14fccfa8df5d26
---
 src/ImageProcessorCore/Common/Helpers/Guard.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ImageProcessorCore/Common/Helpers/Guard.cs b/src/ImageProcessorCore/Common/Helpers/Guard.cs
index 4807d17afd..c5efb01eac 100644
--- a/src/ImageProcessorCore/Common/Helpers/Guard.cs
+++ b/src/ImageProcessorCore/Common/Helpers/Guard.cs
@@ -26,7 +26,7 @@ namespace ImageProcessorCore
         {
             if (target == null)
             {
-                if (string.IsNullOrWhiteSpace(message))
+                if (!string.IsNullOrWhiteSpace(message))
                 {
                     throw new ArgumentNullException(parameterName, message);
                 }