tests: Fix lxc-test-saveconfig cleanup
tests: Fix lxc-test-saveconfig cleanup

Signed-off-by: Stéphane Graber <089afc6d81f66f1168a9849e15660feae286e024@ubuntu.com>
Acked-by: Serge E. Hallyn <3df611b026e4639bee8aef7a4beb2e39fcebb313@ubuntu.com>

yubo/lxc,LynxChaus/lxc,lisongmin/lxc,bmoar/lxc,hallyn/lxc,QingweiPeterLan/cs188-lxc,codebauss/lxc,bmoar/lxc,lazy404/lxc,cjwatson/lxc,armcc/lxc,Pelagicore/lxc,ysbnim/lxc,thmo/lxc,yubo/lxc,bostjan/lxc,akshaykarle/lxc,rowhit/lxc,efiop/lxc,lazy404/lxc,Ponce/lxc,hallyn/lxc,federicobriata/lxc,ecarrara/lxc,ksperis/lxc,DarknessBeforeDawn/lxc,aeris/lxc,christiaan/lxc,jirislaby/lxc,major/lxc,rldleblanc/lxc,regit/lxc,akshaykarle/lxc,terceiro/lxc,thmo/lxc,codebauss/lxc,JohnPeacockMessageSystems/lxc,aeris/lxc,weizhenwei/lxc,raspberrypython/lxc,Pelagicore/lxc,efiop/lxc,Distrotech/lxc,sapun/lxc,lisongmin/lxc,ksperis/lxc,efiop/lxc,ojkastl/lxc_Patches,tych0/lxc,major/lxc,hallyn/lxc,GreatFruitOmsk/lxc,DarknessBeforeDawn/lxc,sapun/lxc,raspberrypython/lxc,hkjolhede/lxc,ioops/lxc,hfuCN/lxc,LynxChaus/lxc,christiaan/lxc,cjwatson/lxc,szaszg/lxc,ss1h2a3tw/lxc,jirislaby/lxc,Distrotech/lxc,raspberrypython/lxc,GreatFruitOmsk/lxc,cjwatson/lxc,rowhit/lxc,thmo/lxc,tych0/lxc,ioops/lxc,lisongmin/lxc,akshaykarle/lxc,weizhenwei/lxc,tych0/lxc,JohnPeacockMessageSystems/lxc,szaszg/lxc,ecarrara/lxc,regit/lxc,QingweiPeterLan/cs188-lxc,terceiro/lxc,ss1h2a3tw/lxc,caglar10ur/lxc,yubo/lxc,christiaan/lxc,bostjan/lxc,fwilson42/lxc,caglar10ur/lxc,GreatFruitOmsk/lxc,armcc/lxc,ojkastl/lxc_Patches,virajs/lxc,regit/lxc,lazy404/lxc,ojkastl/lxc_Patches,rowhit/lxc,DarknessBeforeDawn/lxc,federicobriata/lxc,caglar10ur/lxc,rldleblanc/lxc,Distrotech/lxc,Pelagicore/lxc,fwilson42/lxc,bmoar/lxc,bostjan/lxc,federicobriata/lxc,ioops/lxc,codebauss/lxc,LynxChaus/lxc,ss1h2a3tw/lxc,jirislaby/lxc,hfuCN/lxc,ksperis/lxc,virajs/lxc,szaszg/lxc,virajs/lxc,Ponce/lxc,JohnPeacockMessageSystems/lxc,hfuCN/lxc,terceiro/lxc,weizhenwei/lxc,major/lxc,ysbnim/lxc,ecarrara/lxc,QingweiPeterLan/cs188-lxc,ysbnim/lxc,armcc/lxc,Ponce/lxc,hkjolhede/lxc,rldleblanc/lxc,ojkastl/lxc_Patches,hkjolhede/lxc,fwilson42/lxc,aeris/lxc,sapun/lxc