Upstream seems to have said no fix is planned: http://<email address hidden>/msg00200.html
Furthermore, I have tried this command in various other shells and it does not work in zsh, ksh93 and mksh either. (ksh93 has a different, incompatible way to use fds greater than 9.)
Therefore, what should be fixed is the man page of flock. The file descriptor should be 9, for example.
Upstream seems to have said no fix is planned: http://<email address hidden> /msg00200. html
Furthermore, I have tried this command in various other shells and it does not work in zsh, ksh93 and mksh either. (ksh93 has a different, incompatible way to use fds greater than 9.)
Therefore, what should be fixed is the man page of flock. The file descriptor should be 9, for example.