This module marks the beginning of an AuthLog clause, which defines how
to log authentication failures and successes. The xxxxxx is the name of a
specific AuthLog module. This section lists the parameters all AuthLogs
use. AuthLogs can also use other parameters that are specific for that
AuthLog. AuthLog clauses can be defined at the top level or within a Realm
or Handler clause.
You can have more than one AuthLog clause for a Realm or Handler. This
makes the Realm or Handler log to each AuthLog method in turn.