[horde] Custom Defaults / Hooks

[Adam Tauno Williams]

I my horde/config/prefs.local.php I've defined two defaults like:

$_prefs['ldap_userdn'] = array(
    'locked' => false,
    'type' => 'text',
    'desc' => _("LDAP Distinguished Name of user object"),
    'hook' => true
);

$_prefs['ldap_usercn'] = array(
    'locked' => false,
    'type' => 'text',
    'desc' => _("CN of user object"),
    'hook' => true
);

Then in horde/config/hooks.php I've added a simple test to see if the
hook ever gets hit; and it doesn't .  Can I have hooks for 'custom'
defaults or do I need to register them somehow beyond inclusion in the
prefs.local.php -

hooks.php
-------------------------
class Horde_Hooks
{
//    // PREFERENCES INIT: See above for documentation.
    public function prefs_init($pref, $value, $username, $scope_ob)
    {
        syslog(LOG_ALERT, "Horde hook for pref: " . $pref);

That syslog statement never appears in the logs.