Debug prints

Author: matthew-brett

.github/workflows/build.yml

@@ -55,6 +55,8 @@ jobs:
       - name: Build
         run: |
           git submodule update --init --recursive
+          echo "Var: $env:CHERE_INVOKING"
+          & $env:BASH_PATH -lc pwd
           & $env:BASH_PATH -lc tools\build_openblas.sh
 
       - name: Test