From 0bfebf7faca88a7009cda190676d212a95305e8f Mon Sep 17 00:00:00 2001
From: Henk Mollema <henkmollema@gmail.com>
Date: Thu, 23 Apr 2015 00:15:18 +0200
Subject: [PATCH] Use `string.IsNullOrEmpty()` instead of empty string check.

---
 src/Microsoft.AspNet.Mvc.Core/FormatterMappings.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Microsoft.AspNet.Mvc.Core/FormatterMappings.cs b/src/Microsoft.AspNet.Mvc.Core/FormatterMappings.cs
index ab184bd690..276f7ac81c 100644
--- a/src/Microsoft.AspNet.Mvc.Core/FormatterMappings.cs
+++ b/src/Microsoft.AspNet.Mvc.Core/FormatterMappings.cs
@@ -66,7 +66,7 @@ namespace Microsoft.AspNet.Mvc
 
         private string RemovePeriodIfPresent(string format)
         {
-            if (format == "")
+            if (string.IsNullOrEmpty(format))
             {
                 throw new ArgumentException(Resources.ArgumentCannotBeNullOrEmpty, nameof(format));
             }