bug fix when using hsigmoid with gpu

paddle/gserver/layers/HierarchicalSigmoidLayer.cpp

@@ -129,8 +129,7 @@ void HierarchicalSigmoidLayer::forward(PassType passType) {
                                  *cpuOutput_,
                                  -1);  // scaleSum
   preOutput_.value->softrelu(*preOutput_.value);
-  MatrixPtr sum =
-      Matrix::create(batchSize, 1, /* trans= */ false, false);
+  MatrixPtr sum = Matrix::create(batchSize, 1, /* trans= */ false, false);
   preOutput_.value->rowSum(*sum);
   cpuOutput_->add(*sum);
   if (useGpu_) {
@@ -164,8 +163,7 @@ void HierarchicalSigmoidLayer::backward(const UpdateCallback& callback) {
     } else {
       cpuBias_ = biases_grad;
     }
-    preOutput_.grad->addByBitCodeBackward(
-        numClasses_, *cpuLabel_, *cpuBias_);
+    preOutput_.grad->addByBitCodeBackward(numClasses_, *cpuLabel_, *cpuBias_);
     if (useGpu) {
       biases_grad->copyFrom(*cpuBias_);
     } else {

paddle/gserver/layers/HierarchicalSigmoidLayer.h

@@ -89,7 +89,6 @@ protected:
   MatrixPtr cpuBias_;
   MatrixPtr cpuOutput_;
   IVectorPtr cpuLabel_;
-
 };
 
 }  // namespace paddle