=head1 DESCRIPTION
BIO_set_callback_ex() and BIO_get_callback_ex() set and retrieve the BIO
-callback. The callback is called during most high level BIO operations. It can
+callback. The callback is called during most high-level BIO operations. It can
be used for debugging purposes to trace operations on a BIO or to modify its
operation.
=head1 COPYRIGHT
-Copyright 2000-2019 The OpenSSL Project Authors. All Rights Reserved.
+Copyright 2000-2020 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the OpenSSL license (the "License"). You may not use
this file except in compliance with the License. You can obtain a copy