Commit
e3920ac82 created "regress_subscription_user2" in subscription.sql,
but forgot to drop it, causing the regression tests to fail if run twice
without re-initdb'ing.
ERROR: subscription "testsub" does not exist
RESET SESSION AUTHORIZATION;
DROP ROLE regress_subscription_user;
+DROP ROLE regress_subscription_user2;
DROP ROLE regress_subscription_user_dummy;
RESET SESSION AUTHORIZATION;
DROP ROLE regress_subscription_user;
+DROP ROLE regress_subscription_user2;
DROP ROLE regress_subscription_user_dummy;