echo env pathf for testhost

eng/wpfautomatedtests.yml

@@ -196,7 +196,16 @@ jobs:
         displayName: Set Path Vars
         inputs:
           targetType: 'inline'
-          script: $env:path = '$(Build.SourcesDirectory)\.dotnet;' + $env:path
+          script: $env:path = '$(Build.SourcesDirectory)\\.dotnet\;' + $env:path
+          workingDirectory: '$(System.ArtifactsDirectory)\testbins'
+        condition: ne(variables['_Platform'], 'arm64')
+        continueOnError: true
+
+      - task: PowerShell@2
+        displayName: Echo Path Vars
+        inputs:
+          targetType: 'inline'
+          script: echo $env:path
           workingDirectory: '$(System.ArtifactsDirectory)\testbins'
         condition: ne(variables['_Platform'], 'arm64')
         continueOnError: true