Call made to deprecated function

wpdb::escape was deprecated in Wordpress 3.6. However two calls were still made to it by settings-debug.php. 'esc_sql' [1] is functionally similar to wpdb::escape but with "stronger" escaping [2].

[1] http://codex.wordpress.org/Function_Reference/esc_sql
[2] http://wordpress.org/support/topic/wordpress-36-rc2-last-minute-wpdbescape-deprecation-is-not-nice

![screen shot 2013-11-28 at 2 30 49 pm](https://f.cloud.github.com/assets/553949/1641792/c18f6620-5863-11e3-971a-f4d6a1b76837.png)