syslog parsing of audit logs.

[Lenny-hos-stofa]

If the MySQL Audit is outputting to syslog, the logfile will also contain a header with:

• extra timestamp
• syslog hostname
• syslog identifier

This new version of the mysqlaudit parser is able to handle this header. Also the hostname is imported into clickhouse, which is a benefit if you receive audit log from several database servers. Please note there is a new column (dbserver) added to the mysql_audit_logs schema.