sys:set-file-owners?

Hi all,

I just came across this function (see subject line) which is exported
like sys:set-file-dates but not documented.  Or I was too dumb to find
the documentation.

To LispWorks: Any chance the documentation could be added?

To all: I was actually looking for a convenience function similar to
chmod(1) to change file permissions.  Is there something like this in
LW that works across platforms?

Thanks,
Edi.