[skip render] add quoting

Author: chrisjkuch

tests/pipenv_harness.sh

@@ -27,7 +27,7 @@ make
 # but on Windows we should ensure we use the system python
 if [[ "$RUNNER_OS" == "Windows" ]]; then
     echo $(where python)
-	pipenv --python $(where python)
+	pipenv --python "$(where python)"
 else
     make create_environment
 fi