Use filename if no title. Props tellyworth. fixes #5080 for 2.3

git-svn-id: https://develop.svn.wordpress.org/branches/2.3@6234 602fd350-edb4-49c9-b593-d223f7449a82

wp-admin/includes/upload.php

@@ -31,6 +31,9 @@ function wp_upload_display( $dims = false, $href = '' ) {
 	$src = wp_make_link_relative( $src_base );
 	$src_base = str_replace($src, '', $src_base);
 
+	if ( !trim($post_title) )
+		$post_title = basename($src);
+
 	$r = '';
 
 	if ( $href )