Fix warning suppression

Author: haacked

RestSharp.IntegrationTests/RestSharp.IntegrationTests.csproj

@@ -38,7 +38,8 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
-    <DocumentationFile>bin\Release\RestSharp.IntegrationTests.xml</DocumentationFile>
+    <DocumentationFile>
+    </DocumentationFile>
     <NoWarn>CS1591</NoWarn>
   </PropertyGroup>
   <ItemGroup>

RestSharp.Net4/RestSharp.Net4.csproj

@@ -33,7 +33,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <DocumentationFile>bin\Release\RestSharp.xml</DocumentationFile>
-    <NoWarn>CS1591</NoWarn>
+    <NoWarn>1591</NoWarn>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />

RestSharp.Silverlight/RestSharp.Silverlight.csproj

@@ -48,7 +48,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <DocumentationFile>Bin\Release\RestSharp.Silverlight.xml</DocumentationFile>
-    <NoWarn>CS1591</NoWarn>
+    <NoWarn>1591</NoWarn>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="mscorlib" />

RestSharp.WindowsPhone/RestSharp.WindowsPhone.csproj

@@ -43,7 +43,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <DocumentationFile>Bin\Release\RestSharp.WindowsPhone.xml</DocumentationFile>
-    <NoWarn>CS1591</NoWarn>
+    <NoWarn>1591</NoWarn>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="mscorlib" />

RestSharp/RestSharp.csproj

@@ -56,7 +56,7 @@
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
     <DocumentationFile>bin\Release\RestSharp.xml</DocumentationFile>
-    <NoWarn>CS1591</NoWarn>
+    <NoWarn>1591</NoWarn>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.Build.Framework" />