[OpenAFS] OpenAFS on MacOS X

[Jim Rees]

  2) Some people have gone to moving their mount points for foreign
  cells to elsewhere than /afs, and then putting symlinks in /afs
  pointing to the new location.

This problem comes up over and over.  I am inclined to put a dirty hack in
to the stat op that would fake up the stat info for anything in /afs.  Most
anything that stats these entries just wants to know whether it's a file or
a directory, and it's always a directory.  This could be made optional on a
per-client basis.