fix style

paddle/fluid/operators/reader/ctr_reader.h

@@ -153,9 +153,9 @@ class CTRReader : public framework::FileReader {
     VLOG(3) << "reopen success";
     VLOG(3) << "thread_num " << thread_num_;
     for (int thread_id = 0; thread_id < thread_num_; thread_id++) {
-      read_threads_.emplace_back(new std::thread(
-          std::bind(&ReadThread, file_groups_[thread_id], data_desc_, static_cast<int>(thread_id),
-                    &read_thread_status_, queue_)));
+      read_threads_.emplace_back(new std::thread(std::bind(
+          &ReadThread, file_groups_[thread_id], data_desc_,
+          static_cast<int>(thread_id), &read_thread_status_, queue_)));
     }
     monitor_thread_.reset(new std::thread(
         std::bind(&MonitorThread, &read_thread_status_, queue_)));