silence netstat warnings in lxc-ls
silence netstat warnings in lxc-ls

netstat -x sometimes spits errors to stderr like:
	warning, got bogus unix line.
Shut those up as they don't help lxc-ls.

Signed-off-by: Serge Hallyn <3df611b026e4639bee8aef7a4beb2e39fcebb313@canonical.com>
Signed-off-by: Daniel Lezcano <3211518dd4d87cb3f7ee12cb52e14b7fb2bc0446@fr.ibm.com>

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