message: Don't save unused return value
diff: @@ -180,8 +180,7 @@ std::string hostname() {
  char buf[HOST_NAME_MAX + 1];
  buf[HOST_NAME_MAX] = '\0';
  gethostname(buf, HOST_NAME_MAX);
  - struct hostent* h;
  - h = gethostbyname(buf);
  + gethostbyname(buf);
  return std::string{buf};
  }
  