Currently missing, mew modular xorg puts man pages in these sections at least by
default (unless it's intended to force these into man in which case please
close this as not a bug ...)
Xorg contains manpages with names that conflict with system manpages.
In the past that wasn't much of a problem since X installed the manpages
into the /usr/X11R6 hierarchy, however X11R7 installs them to /usr/share/man.
In order to avoid the namespace conflict between Xorg manpages, and system
manpages, X.Org has changed the X manpage directories to "man?x", so they
do not conflict.
This problem is fixed in the last version (man-1.5p-7). Thank you for your notice.