+=item --format=FORMAT
+
+=item -f FORMAT
+
+Most commonly C<text> (the default) or C<reply> to
+display the message(s) in a format suitable for trimming
+and sending as a email reply.
+
+=item --stdin
+
+=item -
+
+C<lei lcat> implicitly reads from stdin if it is a L<pipe(7)>
+or regular file. This is handy for invoking C<lei lcat> from
+inside an C<$EDITOR> session (assuming you use an C<$EDITOR>
+which lets you pipe arbitrary lines to arbitrary commands).
+