LP #358412: Add microseconds to event time in slow query log

**Reported in Launchpad by Baron Schwartz last update 19-06-2010 06:33:22

The first line in a slow log event looks like this:

1. Time: 090402 9:23:36 # [email protected]: XXX @ XXX [10.X.X.X]

I would like to see microseconds (optionally) added to the timestamp, like this:

1. Time: 090402 9:23:36.123456 # [email protected]: XXX @ XXX [10.X.X.X]

This should be optional so users can disable it if they want existing log parsers to work OK.