message: Fixed preprocessor conditional for tstring on big endian.
  H/T to for the discovery.
diff: @@ -145,7 +145,7 @@ extern inline TF_TString_Type TF_TString_GetType(const TF_TString *str) {
  // and always byte-swapping on big endian, resulting in a simple 'bswap'+'shr'
  // (for architectures that have a bswap op).
  static inline size_t TF_TString_ToActualSizeT(size_t size) {
  -#ifdef TF_TSTRING_LITTLE_ENDIAN
  +#if TF_TSTRING_LITTLE_ENDIAN
  return size >> 2;
  #else // TF_TSTRING_LITTLE_ENDIAN
  // 0xFF000000 or 0xFF00000000000000 depending on platform
  @@ -157,7 +157,7 @@ static inline size_t TF_TString_ToActualSizeT(size_t size) {
  static inline size_t TF_TString_ToInternalSizeT(size_t size,
  TF_TString_Type type) {
  -#ifdef TF_TSTRING_LITTLE_ENDIAN
  +#if TF_TSTRING_LITTLE_ENDIAN
  return (size << 2) | type;
  #else // TF_TSTRING_LITTLE_ENDIAN
  // 0xFF000000 or 0xFF00000000000000 depending on platform
  