message: test: Create fresh CDataStream each time
  Can be reviewed with --ignore-all-space
diff: @@ -164,22 +164,23 @@ BOOST_AUTO_TEST_CASE(bitstream_reader_writer)
  BOOST_AUTO_TEST_CASE(streams_serializedata_xor)
  {
  std::vector<std::byte> in;
  - CDataStream ds(in, 0, 0);
  // Degenerate case
  + {
  + CDataStream ds{in, 0, 0};
  ds.Xor({0x00, 0x00});
  BOOST_CHECK_EQUAL(""s, ds.str());
  + }
  in.push_back(std::byte{0x0f});
  in.push_back(std::byte{0xf0});
  // Single character key
  -
  - ds.clear();
  - ds.insert(ds.begin(), in.begin(), in.end());
  -
  + {
  + CDataStream ds{in, 0, 0};
  ds.Xor({0xff});
  BOOST_CHECK_EQUAL("\xf0\x0f"s, ds.str());
  + }
  // Multi character key
  @@ -187,12 +188,12 @@ BOOST_AUTO_TEST_CASE(streams_serializedata_xor)
  in.push_back(std::byte{0xf0});
  in.push_back(std::byte{0x0f});
  - ds.clear();
  - ds.insert(ds.begin(), in.begin(), in.end());
  -
  + {
  + CDataStream ds{in, 0, 0};
  ds.Xor({0xff, 0x0f});
  BOOST_CHECK_EQUAL("\x0f\x00"s, ds.str());
  }
  +}
  BOOST_AUTO_TEST_CASE(streams_buffered_file)
  {
  