In the output from mysqlbinlog, incident log events were
represented as just a comment. Since the incident log event
represents an incident that could cause the contents of the
database to change without being logged to the binary log,
it means that if the SQL is applied to a server, it could
potentially lead to that the databases are out of sync.

In order to handle that, this patch adds the statement "RELOAD
DATABASE" to the SQL output for the incident log event. This will
require a DBA to edit the file and handle the case as apropriate
before applying the output to a server.

mysql-test/suite/binlog/t/binlog_incident-master.opt:
  Options file to cause server to generate an incident log
  event when executing a REPLACE.
mysql-test/suite/binlog/t/binlog_incident.test:
  Test to check that the incident log event is represented
  correctly in the output from mysqlbinlog.
sql/log_event.cc:
  The incident log event now ouput a "RELOAD DATABASE" instead
  of just a comment. RELOAD DATABASE is not an existing command
  and will generate a syntax error.