Getting Ctrl+Alt+Backspace to work with new X

[David Mazieres <200203041606.g24G60795304@scs.cs.nyu.edu>]

Can anyone tell me how to make Ctrl+Alt+Backspace kill the X server
with the new version of XFree86 that ships with OpenBSD 3.4?

I've tried adding:

        Option          "DontZap" "false"

to both the ServerFlags and ServerLayout portions of the XF86Config
file.  In fact, I don't think it's a server configuration problem,
because if I run just the X server I can kill it with
Ctrl+Alt+Backspace, but if I start the xserver via startx or xinit,
then Ctrl+Alt+Backspace doesn't work, as if the server had been
configured with DontZap set to true.  (Also, the I tried my old
configuration file from OpenBSD 3.3, and it still didn't work.)

Thanks,
David