log: Change time format

- Keep the tailing zeros.
- Limit precision to milliseconds.

log/format.go

@@ -15,7 +15,7 @@ import (
 
 const (
 	timeFormat     = "2006-01-02T15:04:05-0700"
-	termTimeFormat = "01-02|15:04:05.999999"
+	termTimeFormat = "01-02|15:04:05.000"
 	floatFormat    = 'f'
 	termMsgJust    = 40
 )