[PATCH v2] app/flow-perf: add missing default option

[Thomas Monjalon]

> > Currently, if an invalid parameter is passed to the application it will cause a
> > crash due to missing default in options.
> > 
> > For example:
> >         ./dpdk-test-flow-perf -a 01:00.0 -- --invalid
> > 
> > This adds missing default for options, and prints the invalid option.
> > 
> > Fixes: 3344cf2e3001 ("app/flow-perf: add flow performance skeleton")
> > Cc: wisamm at nvidia.com
> > Cc: stable at dpdk.org
> > 
> > Signed-off-by: Raslan Darawsheh <rasland at nvidia.com>
> Acked-by: Wisam Jaddo <wisamm at nvidia.com>

Applied with title "fix parsing of invalid option", thanks.