Date and timestamp, and thread id in each log message

The date and timestamp is written at the beginning of each log record. The thread id is also included in each log record, following the date and timestamp. For example:

[March 2, 2009 3:31:18 PM EDT +357ms] t@3012557744 SM_ProtocolEngine-1
SVIF_MSG-*-DSM-SM_DebugServer: purgeObserver()