2.33.7: Change default :if-exists value for with-output-file to be closer to CLHS.
It's :ERROR rather than :RENAME-AND-DELETE;
however, unlike WITH-OPEN-FILE,
it doesn't revert to :new-version if the pathname had :version :newest.
Comment out a test that kills ECL.
2.33.8: have :here default to (load-pathname) when *here-directory* is nil.

Also, clean some test.