/etc/X11/X already customeizes on a fresh install

[hendrik@topoi.pooq.com]

Just installed 32-bit etch on an AMD64 two days ago.
Today I installed xorg.
Then I did dpkg-reconfigure xserver-xorg, went through the usual 
options, and when I was done, it said,

xserver-xorg postinst warning: not updating /etc/X11/X;  file has been 
customized

Now I know for sure I have not done any such thing.  Perhaps the test 
for customization is wrong?

-- hendrik