+Warning: this clobbers and overwrites the output destination unless
+L</--augment> is specified.
+
+Destination for results (e.g., C</tmp/results-Maildir>,
+C<imaps://user@mail.example.com/INBOX.test>, or
+C<mboxcl2:/tmp/results-mboxcl2>). The prefix may be a supported protocol:
+C<imap://> or C<imaps://>. URLs requiring
+authentication use L<git-credential(1)> to
+fill in the username and password.
+
+A prefix can specify the format of the output: C<maildir>,
+C<mboxrd>, C<mboxcl2>, C<mboxcl>, C<mboxo>. For a description of
+mail formats, see L<lei-mail-formats(5)>.
+
+C<maildir> is the default for an existing directory or non-existing path.
+
+Default: C<-> (stdout)
+
+=item --format=FORMAT
+
+=item -f FORMAT
+
+Format of results to stdout. This option exists as a convenient
+way to specify the format for the default stdout destination.
+C<reply>, C<text>, C<json>, C<jsonl>, or C<concatjson> are all supported,
+as are the various mbox variants described in L</--output>.
+
+When a format isn't specified, it's chosen based on the
+L</--output> destination or prefix. C<json> is used for the
+default destination (stdout).
+
+Using a C<format:> prefix with the C<--output> destination is
+preferred when not writing to stdout.
+
+=item --no-color
+
+Disable color (for C<-f reply> and C<-f text>).