message: sets correct docstring for function
diff: @@ -324,13 +324,12 @@ extern "C" {
  const char* request_json)
  );
  - /// Builds a NODE request.
  + /// Builds a GET_TXN request.
  ///
  /// #Params
  /// command_handle: command handle to map callback to caller context.
  /// submitter_did: Id of Identity stored in secured Wallet.
  - /// target_did: Id of Identity stored in secured Wallet.
  - /// data: id of a target NYM record
  + /// data: seq_no of transaction in ledger
  /// cb: Callback that takes command result as parameter.
  ///
  /// #Returns
  