+- repl and dist currently create a link to the message being replied
+ or redistributed named ./@. A switch, -noatfile, has been added to
+ disable creation of this link. The current default behavior can
+ also be specified with -atfile. The current default behavior is
+ obsolete/deprecated: -noatfile will become the default in the next
+ nmh release. If there are no requests to maintain -atfile, it will
+ be removed in the future.