The config directive controls various aspects of the file parsing. There
are two valid tags:
errmsg controls what message is sent back to the client
if an error includes while parsing the document. When an error occurs,
it is logged in the server's error
log.
timefmt gives the server a new format to use when providing
dates. This is a string compatible with the strftime library
call under most versions of UNIX.
sizefmt determines the formatting to be used when
displaying the size of a file. Valid choices are bytes, for a
formatted byte count (formatted as 1,234,567), or abbrev for
an abbreviated version displaying the number of kilobytes or megabytes the
file occupies.