rptest: fix formatting in redpanda.py

tests/rptest/services/redpanda.py

@@ -670,8 +670,8 @@ def __init__(self):
     # sasl is required
     def sasl_enabled(self):
         return (self.kafka_enable_authorization is None and self.enable_sasl
-                and self.endpoint_authn_method
-                is None) or self.endpoint_authn_method == "sasl"
+                and self.endpoint_authn_method is None
+                ) or self.endpoint_authn_method == "sasl"
 
     # principal is extracted from mtls distinguished name
     def mtls_identity_enabled(self):
@@ -2401,10 +2401,8 @@ def set_cluster_config(self,
             admin_client = self._admin
 
         patch_result = admin_client.patch_cluster_config(
-            upsert={
-                k: v
-                for k, v in values.items() if v is not None
-            },
+            upsert={k: v
+                    for k, v in values.items() if v is not None},
             remove=[k for k, v in values.items() if v is None])
         new_version = patch_result['config_version']