fix copyright headers

Summary: close T85305354

Reviewed By: vaibhava0

Differential Revision: D30063498

fbshipit-source-id: 251a0700d92071bcb1f9eea1e8bc736119ab552a

Author: ppwwyyxx

detectron2/data/benchmark.py

@@ -1,3 +1,4 @@
+# Copyright (c) Facebook, Inc. and its affiliates.
 import logging
 import numpy as np
 from itertools import count

detectron2/export/flatten.py

@@ -1,3 +1,4 @@
+# Copyright (c) Facebook, Inc. and its affiliates.
 import collections
 from dataclasses import dataclass
 from typing import Callable, List, Optional, Tuple

detectron2/modeling/mmdet_wrapper.py

@@ -1,5 +1,4 @@
-# -*- coding: utf-8 -*-
-
+# Copyright (c) Facebook, Inc. and its affiliates.
 import itertools
 import logging
 import numpy as np

projects/Rethinking-BatchNorm/retinanet-eval-domain-specific.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python
+# Copyright (c) Facebook, Inc. and its affiliates.
 import sys
 import torch
 from fvcore.nn.precise_bn import update_bn_stats

tests/modeling/test_mmdet.py

@@ -1,3 +1,4 @@
+# Copyright (c) Facebook, Inc. and its affiliates.
 import unittest
 
 from detectron2.layers import ShapeSpec

tools/lightning_train_net.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python3
+# Copyright (c) Facebook, Inc. and its affiliates.
 # Lightning Trainer should be considered beta at this point
 # We have confirmed that training and validation run correctly and produce correct results
 # Depending on how you launch the trainer, there are issues with processes terminating correctly