ID defaults to LINK, which is not optimal; see `atom-generate-id'
for a way to create good identifiers. For a given entry, it must
not change between successive generations of the atom feed, even
-when the content of the entry ."
+when the content of the entry changes."
(let ((entry (list (list 'title nil title))))
(atom-modify-entry entry 'link (list (list (cons 'href link))))
(atom-modify-entry entry 'id (or id link))