0.8.7.23:

0.8.7.23:
	Fix some OPEN tests
	... :DIRECTION :IO didn't work if the file didn't exist, despite
		default being :CREATE
	... adjust filesys test to cope with new disallowed
		:WILD-INFERIORS :UP
	... we still fail some OPEN tests in PFD's suite: some are because
		of not supporting (unsigned-byte 33) streams, while the
		rest are because DIRECTORY is broken on logical pathnames,
		*sigh*