Comment 4 for bug 421779

Test SB-POSIX-TESTS::MKDIR.ERROR.2 failed
Form: (HANDLER-CASE (SB-POSIX:MKDIR "/" 0)
                    (SB-POSIX:SYSCALL-ERROR (SB-POSIX-TESTS::C)
                                            (SB-POSIX:SYSCALL-ERRNO
                                             SB-POSIX-TESTS::C)))
Expected value: 17
Actual value: 21.

Test SB-POSIX-TESTS::RMDIR.ERROR.3 failed
Form: (HANDLER-CASE (SB-POSIX:RMDIR "/")
                    (SB-POSIX:SYSCALL-ERROR (SB-POSIX-TESTS::C)
                                            (SB-POSIX:SYSCALL-ERRNO
                                             SB-POSIX-TESTS::C)))
Expected value: 16
Actual value: 21.

Test SB-POSIX-TESTS::READDIR.1 failed
Form: (LET ((SB-POSIX-TESTS::DIR (SB-POSIX:OPENDIR "/")))
        (UNWIND-PROTECT
            (BLOCK SB-POSIX-TESTS::DIR-LOOP
              (LOOP SB-POSIX-TESTS::FOR SB-POSIX-TESTS::DIRENT = (SB-POSIX:READDIR
                                                                  SB-POSIX-TESTS::DIR)
                    SB-POSIX-TESTS::UNTIL (NULL-ALIEN SB-POSIX-TESTS::DIRENT)
                    WHEN (NOT
                          (STRINGP
                           (SB-POSIX:DIRENT-NAME SB-POSIX-TESTS::DIRENT)))
                    DO (RETURN-FROM SB-POSIX-TESTS::DIR-LOOP NIL)
                    SB-POSIX-TESTS::FINALLY (RETURN T)))
          (SB-POSIX:CLOSEDIR SB-POSIX-TESTS::DIR)))
Expected value: T

3 out of 60 total tests failed: SB-POSIX-TESTS::MKDIR.ERROR.2,
   SB-POSIX-TESTS::RMDIR.ERROR.3, SB-POSIX-TESTS::READDIR.1.unhandled SIMPLE-ERROR