Run ghc-pkg list through stack

e29218a5 · Andrey Mokhov · 61032aa9 · e29218a5
Commit e29218a5 authored Apr 22, 2016 by Andrey Mokhov
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -35,7 +35,7 @@ install:
    - stack --version
    - alex  --version
    - happy --version
-    - ghc-pkg list
+    - stack exec -- ghc-pkg list

 build_script:
    - cd C:\msys64\home\ghc\shake-build