message: Fix key in state proof for GET_SCHEMA.
diff: @@ -308,7 +308,7 @@ impl TransactionHandler {
  Some(super::ledger::constants::GET_SCHEMA) => {
  if let (Some(name), Some(ver)) = (json_msg["data"]["name"].as_str(),
  json_msg["data"]["version"].as_str()) {
  - format!(":\x02:{}{}", name, ver)
  + format!(":\x02:{}:{}", name, ver)
  } else {
  return None;
  }
  