make sure we only look at files that haven't been excluded (don't let others get added to dnsstate file list)
make sure we only look at files that haven't been excluded (don't let others get added to dnsstate file list)

git-svn-id: cedaea21d87b8e7ca64e45ff9f22dc59bd4b9fcf@4749 25043fe6-1616-0410-a82d-ba8f324cfe61

davidfraser/upbind,davidfraser/upbind