fixup! Let's not use the appveyor real time console

Author: nulltoken

appveyor.yml

@@ -24,7 +24,7 @@ test_script:
 - ps: >-
     [Environment]::SetEnvironmentVariable('APPVEYOR_API_URL', $null)
 
-    Invoke-Expression "$Env:xunit_runner C:\projects\libgit2sharp\LibGit2Sharp.Tests\bin\Release\LibGit2Sharp.Tests.dll"
+    Invoke-Expression "C:\projects\libgit2sharp\packages\xunit.runners.2.0.0-beta5-build2785\tools\$Env:xunit_runner C:\projects\libgit2sharp\LibGit2Sharp.Tests\bin\Release\LibGit2Sharp.Tests.dll"
 
 notifications:
 - provider: Email