[mikebw]

When you put it that way, I concluded that the correct solution was to modify the server code in the "feed-rss2.php" file:

        <?php $content = get_the_content_feed('rss2'); ?>
        <?php if ( strlen( $content ) > 0 ) : ?>
                /* Insert author name into content -- 2019-05-28 */
                <?php $content = "<p><b>By " . get_the_author() . "</b></p>" . $content; ?>
                <content:encoded><![CDATA[<?php echo $content; ?>]]></content:encoded>
        <?php else : ?>
                <content:encoded><![CDATA[<?php the_excerpt_rss(); ?>]]></content:encoded>
        <?php endif; ?>

While the author's name is metadata, it really should also be treated as part of the content.