[PATCH v3] dumpcap: fix interface parameter check.

[Pattan, Reshma]

> -----Original Message-----
> From: Arshdeep Kaur <arshdeep.kaur at intel.com>
> Subject: [PATCH v3] dumpcap: fix interface parameter check.
> 
> Correction in handling 'IF' condition for -i parameter.
> Fixes: cbb44143be74 ("app/dumpcap: add new packet capture application")
> Signed-off-by: Arshdeep Kaur <arshdeep.kaur at intel.com>

Acked-by: Reshma Pattan <reshma.pattan at intel.com>