Fix bad merge

Author: AArnott

Directory.Packages.props

@@ -44,7 +44,7 @@
     <PackageVersion Include="Xunit.StaFact" Version="1.1.11" />
   </ItemGroup>
   <ItemGroup Label="Library.Template">
-    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.11.0" />
+    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
     <PackageVersion Include="Microsoft.VisualStudio.Internal.MicroBuild.NonShipping" Version="$(MicroBuildVersion)" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="3.0.0" />
     <PackageVersion Include="xunit" Version="2.9.0" />