* @brief Append the status information to a user_info struct
*
* The returned information is HTML-ready, appropriately escaped, as all information in a user_info struct should be HTML.
*
* @param gc The PurpleConnection
* @param user_info A PurpleNotifyUserInfo object to which status information will be added
* @param b The PurpleBuddy whose status is desired. This or the aim_userinfo_t (or both) must be passed to oscar_user_info_append_status().
* @param userinfo The aim_userinfo_t of the buddy whose status is desired. This or the PurpleBuddy (or both) must be passed to oscar_user_info_append_status().
* @param use_html_status If TRUE, prefer HTML-formatted away message over plaintext available message.