What? I made no mistake, honest
.. except for my use of [oman][/oman] perhaps, which is
still referencing outdated 4.8 man pages.
Oh, and none of the X set man pages are online.. so you have to view them locally.
And if you thought the section number 7 was a mistake for X, it wasn't.. it simply goes page that introduces X11, and not to the actual man page for the X server.