bug in open(2) example

[Walter Harms <wharms@xxxxxx>]

Hi List,

the example for O_TMPFILE is broken:
  linkat(fd, NULL, AT_FDCWD, "/path/for/file", AT_EMPTY_PATH);
                     ^^^^^^
as the linkat(2) page says "Empty String" not NULL.

see:https://man7.org/linux/man-pages/man2/open.2.html

re,
 wh