From b5156a00b3621838d38473071a1b565d2ceb976f Mon Sep 17 00:00:00 2001
From: Chris Ross <Tratcher@Outlook.com>
Date: Fri, 14 Nov 2014 15:14:16 -0800
Subject: [PATCH] Argument validation cleanup.

---
 src/Microsoft.AspNet.Owin/OwinEnvironment.cs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Microsoft.AspNet.Owin/OwinEnvironment.cs b/src/Microsoft.AspNet.Owin/OwinEnvironment.cs
index 6e132e632f..8a0e7cbcfd 100644
--- a/src/Microsoft.AspNet.Owin/OwinEnvironment.cs
+++ b/src/Microsoft.AspNet.Owin/OwinEnvironment.cs
@@ -37,11 +37,11 @@ namespace Microsoft.AspNet.Owin
         {
             if (context.GetFeature<IHttpRequestFeature>() == null)
             {
-                throw new ArgumentException("Missing required IHttpRequestFeature", "context");
+                throw new ArgumentException("Missing required feature: " + nameof(IHttpRequestFeature) + ".", "context");
             }
             if (context.GetFeature<IHttpResponseFeature>() == null)
             {
-                throw new ArgumentException("Missing required IHttpResponseFeature", "context");
+                throw new ArgumentException("Missing required feature: " + nameof(IHttpResponseFeature) + ".", "context");
             }
 
             _context = context;