DirSet Top-Level Dirs Only

[jason heddings]

I'm trying to craft a dirset that contains only the topl-evel directories of
the supplied path...  I took this approach:
 
<dirset dir="${basedir}">
  <exclude name="${basedir}/*/**" />
</dirset>
 
But that doesn't seem to quite work.  Effectively, I want to have all the
first-level children of the ${basedir} directory only.  Ideally, not even
${basedir} would be returned, but only the children.  I can filter that out
out easilly, though.
 
Thanks,
--jah