Bug fixed in cc8afa2b361635953dfba7f10e4193b1f243a50f. -- http://wingolog.org/
- bug#10337: cdr of `(cons #nil #nil)' is not nil BT Templeton
- bug#10337: cdr of `(cons #nil #nil)' is not nil Andy Wingo
- bug#10337: cdr of `(cons #nil #nil)' is not nil Andy Wingo
