bug in rmdir(2)

[Eric Blake]

POSIX requires resolving a filename with a trailing slash as
though . were implicitly present, and requires rmdir(2) to fail
with EINVAL if the final component is '.'.  Therefore, both of
these cases should fail rather than removing the directory:

$ mkdir a b
$ rmdir a/ b/.
$ ls a b      # Oops, rmdir("a/") and rmdir("b/.") incorrectly succeeded
ls: a: No such file or directory
ls: b: No such file or directory

--
Eric Blake

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