Merge remote-tracking branch 'origin/master'

# Conflicts:
#	README.md

doc/crypto/BIO_s_null.pod

@@ -8,7 +8,7 @@ BIO_s_null - null data sink
 
  #include <openssl/bio.h>
 
- BIO_METHOD *	BIO_s_null(void);
+ const BIO_METHOD *     BIO_s_null(void);
 
 =head1 DESCRIPTION
 
@@ -32,6 +32,13 @@ by adding a null sink BIO to the end of the chain
 
 BIO_s_null() returns the null sink BIO method.
 
-=head1 SEE ALSO
+=head1 COPYRIGHT
 
-TBA
+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