inventory.yml.erb in subspace-3.0.5

- old
+ new

@@ -6,6 +6,7 @@
       ansible_user: ubuntu
       ansible_ssh_private_key_file: subspace.pem
       hostname: web1
   children:
     <%= @env %>:
-      <%= @env %>1:
+      hosts:
+        <%= @env %>1: