Use the correct number of arguments in the example.

doc/crypto/BIO_new_bio_pair.pod

@@ -39,7 +39,7 @@ without having to go through the SSL-interface.
  BIO *internal_bio, *network_bio;
  ...
  BIO_new_bio_pair(internal_bio, 0, network_bio, 0);
- SSL_set_bio(ssl, internal_bio);
+ SSL_set_bio(ssl, internal_bio, internal_bio);
  SSL_operations();
  ...
 
@@ -68,7 +68,7 @@ and must be transfered to the network. Use BIO_ctrl_get_read_request() to
 find out, how many bytes must be written into the buffer before the
 SSL_operation() can successfully be continued.
 
-=head1 IMPORTANT
+=head1 WARNING
 
 As the data is buffered, SSL_operation() may return with a ERROR_SSL_WANT_READ
 condition, but there is still data in the write buffer. An application must