run-tests: auto-replace 'TXNID' output Hooks related to the transaction are aware of the transaction id. By definition this txn-id is unique and different for each transaction. As a result it can never be predicted in test and always needs matching. As a result, touching any like with this data is annoying. We solve the problem once and for all by installing an automatic replacement. In test, this will now show as: TXNID=TXN:$ID$