Revert "fix:escape bash variables"

This reverts commit 204559a.

Attempted fix didn't work.

.github/workflows/validate.yml

@@ -35,16 +35,5 @@ jobs:
 
       - name: Check that files that aren't supposed to change remain unchanged
         run: |
-          for f in ${{steps.changedfiles.outputs.files_updated}}
-          do
-            PYTHONPATH="$PYTHONPATH:." python test/unchanged.py "$"
-          done
-          for f in ${{steps.changedfiles.outputs.files_deleted}}
-          do
-            PYTHONPATH="$PYTHONPATH:." python test/unchanged.py "$f"
-          done
-
-          # PYTHONPATH="$PYTHONPATH:." python test/unchanged.py
-          # ${{steps.changedfiles.outputs.files_updated}}
-          # PYTHONPATH="$PYTHONPATH:." python test/unchanged.py
-          # ${{steps.changedfiles.outputs.files_deleted}}
+          PYTHONPATH="$PYTHONPATH:." python test/unchanged.py ${{steps.changedfiles.outputs.files_updated}}
+          PYTHONPATH="$PYTHONPATH:." python test/unchanged.py ${{steps.changedfiles.outputs.files_deleted}}