DEBUG: Test create tarball with GRASS env var overriden like when tag is used

Author: echoix

.github/workflows/create_release_draft.yml

@@ -62,6 +62,7 @@ jobs:
       - name: Test create tarballs
         run: |
           cd ..
+          GRASS="grass-8.4.1"
           tar -cvf "${OUT_DIR}/${GRASS}.tar" \
             --exclude=".gi*" --exclude=".tr*" \
             --transform s/grass/"${GRASS}"/ grass