fs: enable forget with forget_multi
fs: enable forget with forget_multi

What I found was that forget_multi wasn't being called for some reason.
The documentation says that forget_multi will be called in preference to
forget if possible. So there may be something wonky with my fuse version
or kernel or something like that.

Signed-off-by: Noah Watkins <86ecd7d1c53cf33a85014f7cab78876cb4491020@gmail.com>

noahdesu/gassyfs,noahdesu/gassyfs,noahdesu/fuse-boilerplate,noahdesu/fuse-boilerplate,noahdesu/fuse-boilerplate,noahdesu/gassyfs