c&p error spotted by Martin Forssen

=head1 NAME

SSL_read - write bytes to a TLS/SSL connection.

SSL_write - write bytes to a TLS/SSL connection.

=head1 SYNOPSIS

=item E<lt>0

The read operation was not successful, because either an error occurred

The write operation was not successful, because either an error occurred

or action must be taken by the calling process. Call SSL_get_error() with the

return value B<ret> to find out the reason.