sanity-check number of detected capabilities
sanity-check number of detected capabilities

Signed-off-by: Serge Hallyn <3df611b026e4639bee8aef7a4beb2e39fcebb313@ubuntu.com>

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