[cdr-discuss] Proposed :TRUNCATE keyword for OPEN

[Nick Levine]

   Implementations of the interface described in this document are
   encouraged to ensure that the symbol :CDR-4 occurs in the
   *FEATURES* list when the Lisp environment is configured to behave
   as described in this document.

The CDR-4 tag is already in use - see http://cdr.eurolisp.org/initial.html

- nick