autotest/virt-test — pull request #577 by FengYang (2013-06-28 03:29:46+00:00)
Title: tests.netperf: Update iptables stop command to ignore fail status.

In some host 'service iptables stop' command exit with error code 5.
It will fail our case.

So update the command to 'service iptables stop; echo 1'.

Signed-off-by: Feng Yang