Fix spacing in WebClient tests .csproj

Author: stephentoub

src/System.Net.WebClient/tests/System.Net.WebClient.Tests.csproj

@@ -20,9 +20,9 @@
     <Compile Include="$(CommonTestPath)\System\Net\Http\LoopbackServer.cs">
       <Link>Common\System\Net\Http\LoopbackServer.cs</Link>
     </Compile>
-	<Compile Include="$(CommonTestPath)\System\Threading\Tasks\TaskTimeoutExtensions.cs">
+	  <Compile Include="$(CommonTestPath)\System\Threading\Tasks\TaskTimeoutExtensions.cs">
        <Link>Common\System\Threading\Tasks\TaskTimeoutExtensions.cs</Link>
     </Compile>
   </ItemGroup>
   <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.targets))\dir.targets" />
-</Project>
+</Project>