hub: unlimited NameWidth for kojifiles Apache location
    
    Prior to this change, Apache's mod_autoindex would limit the file name
    lengths in when it displayed directory and file lists under the archive
    location /kojifiles.
    
    Koji archive filenames are often be longer than mod_autoindex's default
    of 20 bytes.
    
    Configure mod_autoindex to show the entire filenames. This makes it
    easier for users to browse /kojifiles to see at a glance which files are
    stored.