Bugfix: test/functional/rpc_psbt: Correct test description comment
Bugfix: test/functional/rpc_psbt: Correct test description comment

Former-commit-id: 1ae3f9348368acfc047ba0edc81cd272b3ed46b9
syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin