Reviewed by: Randy Terbush, Chuck Murcko

Submitted by:	Rodent of Unusual Size <coar@decus.org>

    This patch (to mod_log_config and mod_rewrite) puts "\"\"" into the
    logfile for the %u substitution IFF there's a remote user but of
    zero length (as opposed to none at all).  That should keep the
    logfile analysers from getting indigestion if an authentication is
    done with a null username.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@77446 13f79535-47bb-0310-9956-ffa450edef68