Log Message:
   ``build.sh -m xen-i386 release'' now builds a release for NetBSD/xen
   for i386.  The resulting release consists of:
   - NetBSD/xen for i386 kernel, loader and docuemntation
   - NetBSD/i386 userland sets


if the userland is the same, is there any particular reason that
i386 can't just include a "xen" kernel?  eg, the way that sparc
includes a 32bit "sparc64" kernel.  see sparc/conf/GENERIC_SUN4U.


this would avoid having to have another port to "release".