newnfs client and statfs

[Rick Macklem]

> Would
> 
> if (sfp->sf_ffiles > UINT64_MAX)
> sbp->f_ffree = INT64_MAX;
> else
> sbp->f_ffree = sfp->sf_ffiles;
> 

Oops, I shouldn't have called this UINT64_MAX. What I meant was the
same value as INT64_MAX, but of uint64_t. Something like:
   (uint64_t)INT64_MAX
OR
   0x7fffffffffffffff

rick