Merge forward mod_log_config enhancement.

Added three log methods: CLF compliant '-' byte count, method and protocol.

CVg:   then name the system in this line, otherwise delete it.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@86818 13f79535-47bb-0310-9956-ffa450edef68