edit
LogFormatÀßÄê¤Ë%v¤òÄɵ¤¹¤ë¡£
LogFormat "%v %h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined
http://httpd.apache.org/docs/2.2/ja/mod/mod_log_config.html