* stdlib/test-canon.c: Make doesExist a directory and add more tests

* stdlib/test-canon.c: Make doesExist a directory and add more tests

	for the new error case.

2004-06-02  Dmitry V. Levin  <ldv@altlinux.org>
	    Ranjani Murthy <ranmur@gmail.com>

	* stdlib/canonicalize.c (__realpath): Change realpath(3) to
	return NULL and set errno to ENOTDIR for such pathnames like
	"/path/to/existing-non-directory/".