How to: Add info after author name in the RSS feed

I had to find a way to add arbitrary information (the publication name) after the author name in our RSS feeds.

Here is how I did it.

add_filter( 'the_author', 'edit_author', 10 );
function edit_author( $author ) {
    if ( !is_feed() ){ return $author; }
        else{
        $author = $author.' - My Awesome Site';
		 return $author;
		 }
}

I figured since I needed to do it, others might as well.
Especially helpful when you have other sites syndicating your content.