Ignore empty extra lines in train.txt

AlexeyAB

2018-05-29 ec766fc3f114dd4faaa3add500776a7bae957ba5

 src/dropout_layer.h

@@ -1,8 +1,8 @@
#ifndef DROPOUT_LAYER_H
#define DROPOUT_LAYER_H

#include "params.h"
#include "layer.h"
#include "network.h"

typedef layer dropout_layer;