fix lint

JiayiFeng · JiayiFeng · commit 84413478089a · 2018-04-04T14:27:10.000+08:00
diff --git a/paddle/fluid/operators/reader/create_double_buffer_reader_op.cc b/paddle/fluid/operators/reader/create_double_buffer_reader_op.cc
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include <thread>  //NOLINT
+#include <thread>  // NOLINT
 
 #include "paddle/fluid/framework/channel.h"
 #include "paddle/fluid/operators/reader/reader_op_registry.h"
