- fixes filter for files copy

Author: baywet

test/Microsoft.OpenApi.Hidi.Tests/Microsoft.OpenApi.Hidi.Tests.csproj

@@ -25,7 +25,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <None Update="UtilityFiles\*.(json|yml|xml)">
+    <None Update="UtilityFiles\*.json;UtilityFiles\*.yml;UtilityFiles\*.xml">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
     </None>
     <Compile Update="UtilityFiles\OpenApiDocumentMock.cs">