fb:admin value seems incorrect

Hi,

https://developers.facebook.com/tools/debug/

tells fb:admin value is invalid because userid is formated as “{username}”. Removing {} fixes the problem.

echo ‘<meta property=”fb:admins” content=”{‘ . $admin_user_id . ‘}”/> <!– Facebook Admin ID –>’ . PHP_EOL;

to

echo ‘<meta property=”fb:admins” content=”‘ . $admin_user_id . ‘”/> <!– Facebook Admin ID –>’ . PHP_EOL;

http://wordpress.org/plugins/facebook-comments-notifier/