make 50709 the default even before flag are parsed
make 50709 the default even before flag are parsed

Signed-off-by: Manan Gupta <78fb1e040152fc0d289292783ed01a56d3ae9465@planetscale.com>

mahak/vitess,mahak/vitess,vitessio/vitess,vitessio/vitess,mahak/vitess,vitessio/vitess,vitessio/vitess,vitessio/vitess,mahak/vitess,mahak/vitess,vitessio/vitess,vitessio/vitess,mahak/vitess,mahak/vitess,vitessio/vitess,mahak/vitess