Corr sending of file through socket. Original code keep responding 'o…

[bertrandly]

…k' (tested with EICAR file)

What does this PR do?

It corrects the sending of file through socket. Original code keep responding 'ok' (tested with EICAR file)

Test Plan

Sending EICAR file to a clamav server Docker image mkodockx/docker-clamav:buster-slim)

Related PRs and Issues

Have you read the Contributing Guidelines on issues?

Yes, however this is my first contribution on github