Post-push fix.
Problem: In a previous patch for BUG#39934, rpl_idempotency.test
was split in two tests. The mtr suppressions in the original test
did not make it into the new test. This caused pushbuild warnings.
Fix: copy the mtr suppressions from rpl_idempotency.test to
rpl_row_idempotency.test


mysql-test/suite/rpl/r/rpl_row_idempotency.result:
  updated result file
mysql-test/suite/rpl/t/rpl_row_idempotency.test:
  copied the warnings from rpl_idempotency.test to
  rpl_row_idempotency.test