Send nfs_export_t to untraverse()

*** 649,659 ****
  extern void     exi_rele(struct exportinfo *);
  extern struct exportinfo *nfs_vptoexi(vnode_t *, vnode_t *, cred_t *, int *,
      int *, bool_t);
  extern int      nfs_check_vpexi(vnode_t *, vnode_t *, cred_t *,
                          struct exportinfo **);
! extern vnode_t *untraverse(vnode_t *);
  extern int      vn_is_nfs_reparse(vnode_t *, cred_t *);
  extern int      client_is_downrev(struct svc_req *);
  extern char    *build_symlink(vnode_t *, cred_t *, size_t *);
  
  extern fhandle_t nullfh2;       /* for comparing V2 filehandles */
--- 649,659 ----
  extern void     exi_rele(struct exportinfo *);
  extern struct exportinfo *nfs_vptoexi(vnode_t *, vnode_t *, cred_t *, int *,
      int *, bool_t);
  extern int      nfs_check_vpexi(vnode_t *, vnode_t *, cred_t *,
                          struct exportinfo **);
! extern vnode_t *untraverse(struct nfs_export *, vnode_t *);
  extern int      vn_is_nfs_reparse(vnode_t *, cred_t *);
  extern int      client_is_downrev(struct svc_req *);
  extern char    *build_symlink(vnode_t *, cred_t *, size_t *);
  
  extern fhandle_t nullfh2;       /* for comparing V2 filehandles */