f braces containing a date and time pattern string compatible with java.text.SimpleDateFormat, <em>ABSOLUTE</em>, <em>DATE</em> or <em>ISO8601</em>. For example, <b>d{HH:mm:ss,SSS}</b>, <b>d{dd&nbsp;MMM&nbsp;yyyy&nbsp;HH:mm:ss,SSS}</b> or <b>d{DATE}</b>. If no date format specifier is given then ISO8601 format is assumed.  <p>
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<td align="center>"><b>F</b><p>
</td><td>Used to output the file name where the logging request was issued.<p>
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<td align="center>"><b>l</b><p>
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