add prototype for clone(2) as per manpage
add prototype for clone(2) as per manpage

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

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