Don't show 'Continue reading' in Twenty Ten on attachment pages. props iandstewart, fixes #13361.

git-svn-id: https://develop.svn.wordpress.org/trunk@15120 602fd350-edb4-49c9-b593-d223f7449a82

wp-content/themes/twentyten/functions.php

@@ -282,7 +282,7 @@ add_filter( 'excerpt_more', 'twentyten_auto_excerpt_more' );
  * @return string Excerpt with a pretty "Continue Reading" link
  */
 function twentyten_custom_excerpt_more( $output ) {
-	if ( has_excerpt() ) {
+	if ( has_excerpt() && ! is_attachment() ) {
 		$output .= twentyten_continue_reading_link();
 	}
 	return $output;