message: Format hex dump in control_message_matcher
diff: #ifndef SRC_COMPONENTS_PROTOCOL_HANDLER_TEST_INCLUDE_PROTOCOL_HANDLER_CONTROL_MESSAGE_MATCHER_H_
  #define SRC_COMPONENTS_PROTOCOL_HANDLER_TEST_INCLUDE_PROTOCOL_HANDLER_CONTROL_MESSAGE_MATCHER_H_
  +#include <iomanip>
  #include <ios>
  #include <string>
  #include <vector>
  @@ -153,7 +154,8 @@ MATCHER_P4(ControlMessage,
  *result_listener << "Message with " << data_vector.size()
  << " byte data : 0x";
  for (size_t i = 0u; i < data_vector.size(); ++i) {
  - *result_listener << std::hex << static_cast<int>(data_vector[i]);
  + *result_listener << std::setw(2) << std::setfill('0') << std::hex
  + << static_cast<int>(data_vector[i]);
  }
  return false;
  }
  