Hello. Line 109 of apache2splitlogfile has an error. Lines 108 and 109 are as follows:

    open LOGFILE, ">>$filename"
            or die ("Can't open $logs/$filename");

Line 109 should just say "Can't open $filename"; it should not include "$logs" in the string. This is 
because of line 104, which reads:

    $filename="$logs/VLOG-$date-${vhost}.log";

See? $logs is already part of $filename.

As a result, my error log has paths in it which are confusing, because the directory part is printed twice. 
This perhaps leads me to incorrect conclusions about the source of my misconfiguration.