message: Fixed the incorrect usage of `tensorflow::mutex_lock`
diff: @@ -376,7 +376,7 @@ void TFLogSinks::Add(TFLogSink* sink) {
  if(sink == nullptr) {
  return;
  }
  - tensorflow::mutex_lock<tensorflow::mutex> lock(mutex_);
  + tensorflow::mutex_lock lock(mutex_);
  auto it = FindSink(sink);
  if(it == sinks_.end()) {
  sinks_.emplace_back(sink);
  @@ -387,7 +387,7 @@ void TFLogSinks::Remove(TFLogSink* sink) {
  if(sink == nullptr) {
  return;
  }
  - tensorflow::mutex_lock<tensorflow::mutex> lock(mutex_);
  + tensorflow::mutex_lock lock(mutex_);
  auto it = FindSink(sink);
  if(it != sinks_.end()) {
  sinks_.erase(it);
  @@ -395,7 +395,7 @@ void TFLogSinks::Remove(TFLogSink* sink) {
  }
  void TFLogSinks::Send(const TFLogEntry& entry) {
  - tensorflow::mutex_lock<tensorflow::mutex> lock(mutex_);
  + tensorflow::mutex_lock lock(mutex_);
  #ifndef NO_DEFAULT_LOGGER
  // If we don't have any sinks registered, just dump everything to stderr
  if(sinks_.empty()) {
  