BN_swap() exchanges the values of I<a> and I<b>.
-L<bn(3)|bn(3)>
+L<bn(3)>
-=head1 HISTORY
+=head1 COPYRIGHT
-BN_swap was added in OpenSSL 0.9.7.
+Copyright 2000-2016 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
+in the file LICENSE in the source distribution or at
+L<https://www.openssl.org/source/license.html>.
=cut