<filename>stderr</filename> is used. The log is appended to this file.
If the file grows overly large, it is silently rotated: It is renamed to
<replaceable>logfile</replaceable>.1,
<filename>stderr</filename> is used. The log is appended to this file.
If the file grows overly large, it is silently rotated: It is renamed to
<replaceable>logfile</replaceable>.1,