lxc-centos: fix parsing of option "--clean": it takes no argument
lxc-centos: fix parsing of option "--clean": it takes no argument

Signed-off-by: Michael Adam <dcf2bf3ff8ea93047d51252815aac9756207ea09@samba.org>
Signed-off-by: Serge Hallyn <3df611b026e4639bee8aef7a4beb2e39fcebb313@ubuntu.com>

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