Display FETCH_HEAD in the log

Co-authored-by: Jan Matyas <[email protected]>
Signed-off-by: Tim Newsome <[email protected]>

Author: timsifive

.github/workflows/checkpatch.yml

@@ -16,6 +16,7 @@ jobs:
       - name: Checkout Base
         run: |
             git fetch origin ${{ github.event.pull_request.base.ref }}
+            echo "The current base for checkpatch is: $(git show FETCH_HEAD --oneline --raw)"            
       - name: Install required packages (apt-get)
         run: |
             sudo apt-get update