Output elapsed time since last message in Log4Net
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I am using log4net in c# console app, and I was wondering if it was possible to have each log entry include the elapsed time since the last log entry?

Right now, I am using `%-4timestamp` (which I believe is the milliseconds since the start of the log) so I can spin through the log later and calculate the difference between an entry and the previous entry.  I was hoping there was something I could use to get the elapsed time to appear in each log message though.

Is this possible?

Thanks in advance!