[PATCH] lib/hash: fix the return value description of rte_hash

[Stephen Hemminger]

On Mon, 27 Jun 2022 21:11:21 +0800
Chenming C <ccm at ccm.ink> wrote:

> The rte_hash lookup can return ZERO which is not a positive value.
> 
> Signed-off-by: Chenming C <ccm at ccm.ink>

Right, zero is neither positive or negative.
Acked-by: Stephen Hemminger <stephen at networkplumber.org>