I'm not sure if this is a bug, but I thought that, since the line "/opt/ttfonts" exists in /etc/X11/fs/config, it should be added to /etc/X11/fs/config as well.
Um, the two files you listed were exactly the same. Could you clarify?
Oops, I ment both /etc/X11/fs/config and /etc/X11/XftConfig.
and why /opt/ttfonts ? I'd say all reasonable paths are covered already and after that it is up to the user.
well, if this path is covered in one file, it could be covered more often. But I leave it up to you :)
Not good enough justification for this to be a default.