Template Editor missing </strong> tag

[Cyberstorm]

On line 86 of wp-admin/theme-editor.php, $desc_header is defined as below:

$desc_header = ( $description != $file_show ) ? "$description</strong> (%s)" : "%s";

And on line 109, there is this:

<big><strong><?php echo sprintf($desc_header, $file_show); ?></big>

If editing a custom file (one that does not come with a normal theme), a </strong> tag will be missing, which messes with the layout.

invalid in trunk