fix vars and playbook for simulate-fabric
diff --git a/roles/simulate-fabric/templates/simulate-fabric-vars.yml.j2 b/roles/simulate-fabric/templates/simulate-fabric-vars.yml.j2
index 84a74b7..b129297 100644
--- a/roles/simulate-fabric/templates/simulate-fabric-vars.yml.j2
+++ b/roles/simulate-fabric/templates/simulate-fabric-vars.yml.j2
@@ -1,6 +1,8 @@
 ---
 
-simfabric_bridges: {{ simfabric_bridges | to_yaml }}
+simfabric_bridges:
+{{ simfabric_bridges | to_nice_yaml }}
 
-simfabric_interfaces: {{ simfabric_interfaces | to_yaml }}
+simfabric_interfaces:
+{{ simfabric_interfaces | to_nice_yaml }}