handle kernel 3.x in lxc-checkconfig
handle kernel 3.x in lxc-checkconfig

Make sure to correctly detect kernel 3.x for file capabilities.

Signed-off-by: Daniel Lezcano <3211518dd4d87cb3f7ee12cb52e14b7fb2bc0446@fr.ibm.com>

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