fix length in rdp_send_confirm_active, fixes virtualbox with both legacy encryption and tls for me while not impacting support for windows rdp servers
fix length in rdp_send_confirm_active, fixes virtualbox with both legacy encryption and tls for me while not impacting support for windows rdp servers

FreeRDP/FreeRDP-old,FreeRDP/FreeRDP-old,FreeRDP/FreeRDP-old