[PATCH] test-flow-perf: fix the incorrect array length

[Thomas Monjalon]

> > The array used to save the flow rules pointer was allocated with an incorrect
> > length. 1 more rule space should be appended but not 1 byte.
> > 
> > Fixes: 070316d01d3e ("app/flow-perf: add multi-core rule insertion and
> > deletion")
> > Cc: wisamm at nvidia.com
> 
> Acked-by: Wisam Jaddo <wisamm at nvidia.com>

Applied, thanks.