bitcoin-wallet: Add a missing closing parenthesis in the help
bitcoin-wallet: Add a missing closing parenthesis in the help

Former-commit-id: 68c3d20feca520c1a5bed6944e393ddc96fc2522
syscoin/syscoin2,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin2,syscoin/syscoin2,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin2,syscoin/syscoin2,syscoin/syscoin2,syscoin/syscoin