[PATCH] NetTestSlave: add missing import of ExecCmdFail

[Jan Tluka]

Method restore_system_config is using exception ExecCmdFail that is not
imported. This results in an exception. The patch adds missing import
statement.

Signed-off-by: Jan Tluka <jtluka(a)redhat.com&gt;
---
 lnst/Slave/NetTestSlave.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lnst/Slave/NetTestSlave.py b/lnst/Slave/NetTestSlave.py
index 13b07a2..0b00a68 100644
--- a/lnst/Slave/NetTestSlave.py
+++ b/lnst/Slave/NetTestSlave.py
@@ -26,7 +26,7 @@ from lnst.Common.PacketCapture import PacketCapture
 from lnst.Common.Utils import die_when_parent_die
 from lnst.Common.NetUtils import scan_netdevs, test_tcp_connection
 from lnst.Common.NetUtils import normalize_hwaddr
-from lnst.Common.ExecCmd import exec_cmd
+from lnst.Common.ExecCmd import exec_cmd, ExecCmdFail
 from lnst.Common.ResourceCache import ResourceCache
 from lnst.Common.NetTestCommand import NetTestCommandContext
 from lnst.Common.NetTestCommand import CommandException, NetTestCommand
-- 
1.8.1.4