as the already-stored timestamp. Now 'created' is used only to know if
this is a first binlog or not. And we may re-use the superfluous bytes
in 5.0 when we need room.


sql/log_event.cc:
  This sort of reverts a change I made in 3.23.57. In 3.23.57 I set 'created' to 0
  if this was a non-first binlog, so I made mysqlbinlog not print the "created xx"
  part if created == 0. While this was sensible, as 'created' is 0 or equal to
  the timestamp which is already stored in the event, we can always print
  "created xx" by using the timestamp, and leaving the use of 'created' only to
  know if this is a first binlog or not (which we print as "created at startup").
sql/log_event.h:
  In Start_log_event, 'created' is always the same as 'when', or O.
  We didn't need 4 bytes for this, a bit would have been enough (O or
  "same as 'when'"). Possibly in 5.0 we will re-use the useless bytes.