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.

hub/httpd.conf

@@ -28,6 +28,7 @@ Alias /kojifiles "/mnt/koji/"
     #you will need to follow all symlinks instead, e.g.
     #Options Indexes FollowSymLinks
     AllowOverride None
+    IndexOptions +NameWidth=*
     <IfVersion < 2.4>
         Order allow,deny
         Allow from all