rdpdr: man page entry for the serial redirection
rdpdr: man page entry for the serial redirection

Signed-off-by: Eduardo Beloni <080ca8513c003c69d883e50d5fba11d615255d3d@ossystems.com.br>

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