the smbfs if depreciated but this is not really known but the users. It would be very helpful for them IMHO if there were notes in the helppages and manpages of mount.smbfs, smbmount and smbumount that user should switch to mount.cifs
This would prepare the removal of smbfs.
Fixed with r1106/1107 in the samba-docs tree.
what about the smbmount|smbumount --help output?
or you prefer this in a later step?