save snmp interfaces properly

inventory_provider/tasks/worker.py

@@ -91,9 +91,9 @@ def snmp_refresh_interfaces(hostname, community):
 
     _save_value_json(
         'snmp-interfaces:' + hostname,
-        list(snmp.get_router_snmp_indexes(
+        snmp.get_router_snmp_indexes(
             hostname,
-            community)))
+            community))
 
     logger.debug(
         '<<< snmp_refresh_interfaces(%r, %r)' % (hostname, community))