attribute directories, and symlinks.
This reduces the space usage of the image created by makehdimage quite
a bit already (dropped from currently 56 MB to 34 MB).
The core of r10356, the fix for the preallocation memory leak, however,
has not been backported (it would probably save another 5 MB on the final
image).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12797 a95241bf-73f2-0310-859d-f6bbb57e9c96