fix format space, test=develop

lite/core/mir/fusion/conv_bn_fuser.cc

@@ -194,7 +194,7 @@ void ConvBNFuser::InsertNewNode(SSAGraph* graph, const key2nodes_t& matched) {
     // compute new conv_weight
     auto conv_weight_d = conv_weight_t->mutable_data<float>();
     if (conv_type_ == "conv2d_transpose") {
-      int c_size = conv_weight_t->dims()[1] * conv_weight_t->dims()[2] * 
+      int c_size = conv_weight_t->dims()[1] * conv_weight_t->dims()[2] *
                    conv_weight_t->dims()[3];
       int hw = conv_weight_t->dims()[2] * conv_weight_t->dims()[3];
       for (unsigned int k = 0; k < conv_weight_t->dims()[0]; ++k) {