auto_close_connection_pool is ignored if a pool is provided

Author: kristjanvalur

Diff for: redis/asyncio/sentinel.py

@@ -339,10 +339,11 @@ def master_for(
         connection_pool = connection_pool_class(service_name, self, **connection_kwargs)
         # The Redis object "owns" the pool
         auto_close_connection_pool = True
-        return redis_class(
+        client = redis_class(
             connection_pool=connection_pool,
-            auto_close_connection_pool=auto_close_connection_pool,
         )
+        client.auto_close_connection_pool = auto_close_connection_pool
+        return client
 
     def slave_for(
         self,
@@ -375,7 +376,9 @@ def slave_for(
         connection_pool = connection_pool_class(service_name, self, **connection_kwargs)
         # The Redis object "owns" the pool
         auto_close_connection_pool = True
-        return redis_class(
+        client = redis_class(
             connection_pool=connection_pool,
-            auto_close_connection_pool=auto_close_connection_pool,
         )
+        client.auto_close_connection_pool = auto_close_connection_pool
+        return client
+