Change in vdsm[master]: pylint: Clean tc.filter from pylint errors

[Code Review]

From Dan Kenigsberg :

Dan Kenigsberg has submitted this change and it was merged.

Change subject: pylint: Clean tc.filter from pylint errors
......................................................................

pylint: Clean tc.filter from pylint errors

Pylint detects an assignment from a function that does not specify any
return value.

Change-Id: Ic4f16dcae6307994f779308f643cd654be31a283
Signed-off-by: Edward Haas 
---
M lib/vdsm/network/tc/filter.py
1 file changed, 3 insertions(+), 4 deletions(-)

Approvals:
  Jenkins CI: Passed CI tests
  Dan Kenigsberg: Looks good to me, approved
  Edward Haas: Verified