Don't overwrite machine name with disk name

minicoin/Vagrantfile

@@ -218,13 +218,13 @@ Vagrant.configure("2") do |config|
       # storage setup, using the experimental 'disks' vagrant feature. It is not implemented
       # for most providers and anyway won't do anything unless VAGRANT_EXPERIMENTAL="disks"
       # is set, so the _setup methods that come next will implement the feature where we can.
-      name="data0"
+      diskname="data0"
       storages = machine["storage"] || []
       storages = [storages] unless storages.is_a?(Array)
       storages.each do |storage|
         storage = { "size" => storage } unless storage.is_a?(Hash)
-        box.vm.disk :disk, name: storage['name'] || name, size: "#{storage['size']}GB"
-        name.next!
+        box.vm.disk :disk, name: storage['name'] || diskname, size: "#{storage['size']}GB"
+        diskname.next!
       end
 
       # call provider specific plugin extensions to map general minicoin configs to