Provide PID, hostname, host address and application information in the absence of data from MessageFacility
Since MessageFacility v2_00_02, the PID, hostname, host address, and application fields are no longer filled in by default. This information is known by the ELadministrator, but not accessible from an ELdestination plugin. As a temporary workaround, the UDP destination plugin should fill in this information. However, the application name can be set after application start-up by a MessageFacility call, and this information will be lost (the UDP destination only has access to the application name as seen by /proc/<pid>/cmdline).