GSList *second);
GSList *address_list_append (GSList *addr_list,
const gchar *str);
+GSList *address_list_append_with_comments(GSList *addr_list,
+ const gchar *str);
GSList *references_list_append (GSList *msgid_list,
const gchar *str);
GSList *newsgroup_list_append (GSList *group_list,