oradebug doc event name kg_event

SQL> oradebug doc event name kg_event
 
kg_event: Support old error number events (use err# for short)

Usage
-------
kg_event [ errno           <ub4> ]
   level           <ub4>,
   lifetime        <ub4>,
   armcount        <ub4>,
   traceinc        <ub4>,
   forever         <ub4>