The format of the log is:
<synopsis>
-<replaceable>client_id</> <replaceable>transaction_no</> <replaceable>time</> <replaceable>file_no</> <replaceable>time_epoch</> <replaceable>time_us</> <optional><replaceable>schedule_lag</replaceable></optional>
+<replaceable>client_id</> <replaceable>transaction_no</> <replaceable>time</> <replaceable>script_no</> <replaceable>time_epoch</> <replaceable>time_us</> <optional><replaceable>schedule_lag</replaceable></optional>
</synopsis>
where <replaceable>time</> is the total elapsed transaction time in microseconds,
- <replaceable>file_no</> identifies which script file was used
- (useful when multiple scripts were specified with <option>-f</>),
+ <replaceable>script_no</> identifies which script file was used (useful when
+ multiple scripts were specified with <option>-f</> or <option>-b</>),
and <replaceable>time_epoch</>/<replaceable>time_us</> are a
Unix epoch format time stamp and an offset
in microseconds (suitable for creating an ISO 8601