title: Change publish button text from option page
body: <p>I know how to change the text from a post type, but it is not working in option page from my custom post type:</p>
  
  <pre><code>function change_publish_button( $translation, $text ) {
  if ( $text == 'Publish' || $text == 'Update' )
      return 'Export';
  
  return $translation;                                                          
  }
  </code></pre>