log_path: free on lxc_conf free (for master)
log_path: free on lxc_conf free (for master)

This is for the master branch, to fix a memleak on conf free.

Signed-off-by: Serge Hallyn <3df611b026e4639bee8aef7a4beb2e39fcebb313@ubuntu.com>
Acked-by: Stéphane Graber <089afc6d81f66f1168a9849e15660feae286e024@ubuntu.com>

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