* test/lisp/so-long-tests/spelling-tests.el (so-long-spelling): Use ;ert-with-temp-directory' instead of passing :directory to 'ert-with-temp-file', and restore the prefix/suffix values used originally with 'make-temp-file'.
* test/lisp/so-long-tests/spelling-tests.el (so-long-spelling): Use ;ert-with-temp-directory' instead of passing :directory to 'ert-with-temp-file', and restore the prefix/suffix values used originally with 'make-temp-file'.