fix privileges test

Author: arthurpassos

tests/queries/0_stateless/01271_show_privileges.reference

@@ -43,6 +43,7 @@ ALTER TTL	['ALTER MODIFY TTL','MODIFY TTL']	TABLE	ALTER TABLE
 ALTER MATERIALIZE TTL	['MATERIALIZE TTL']	TABLE	ALTER TABLE
 ALTER SETTINGS	['ALTER SETTING','ALTER MODIFY SETTING','MODIFY SETTING','RESET SETTING']	TABLE	ALTER TABLE
 ALTER MOVE PARTITION	['ALTER MOVE PART','MOVE PARTITION','MOVE PART']	TABLE	ALTER TABLE
+ALTER EXPORT PARTITION	['ALTER EXPORT PART','EXPORT PARTITION','EXPORT PART']	TABLE	ALTER TABLE
 ALTER FETCH PARTITION	['ALTER FETCH PART','FETCH PARTITION']	TABLE	ALTER TABLE
 ALTER FREEZE PARTITION	['FREEZE PARTITION','UNFREEZE']	TABLE	ALTER TABLE
 ALTER UNLOCK SNAPSHOT	['UNLOCK SNAPSHOT']	TABLE	ALTER TABLE