[racket] help browser other than "open" in OS X

Hi,

If i've read the code correctly, it's currently not possible, in OS X,
to specify a help browser other than "open" (the system's default).  Am
i right? And, if so, would you accept a bug report (or even a patch) to
make it configurable as in linux? (i use racket inside emacs, and is
very useful to set the help browser to a specific elisp function
there).

Thanks!
jao
-- 
For every complex problem there is an answer that is clear, simple,
and wrong. —Henry Mencken