Fix unknown flag sdf-filter

[abousselmi]

No description provided.

[onf-cla-manager]

Hi @abousselmi, this is the ONF bot 🤖 I'm glad you want to contribute to our projects! However, before accepting your contribution, we need to ask you to sign a Contributor License Agreement (CLA). You can do it online, it will take only a few minutes:

✒️ 👉 https://cla.opennetworking.org

After signing, make sure to add your Github user ID abousselmi to the agreement.

For more information or help:"
https://wiki.opennetworking.org/x/BgCUI

[ianchen0119]

LGTM

[gab-arrobo]

@abousselmi please sign the CLA and also rebase your PR. Thanks!

[abousselmi]

Hi @gab-arrobo I tried many times on https://cla.opennetworking.org/ but I've never got an email to validate the CLA

[gab-arrobo]

Hi @gab-arrobo I tried many times on https://cla.opennetworking.org/ but I've never got an email to validate the CLA

Hi @dafATonf, can you please help @abousselmi address the issue with the CLA?

[gab-arrobo]

@abousselmi, can you please give it a try to sign the CLA one more time? Thanks!