use ptmxmode mount option
use ptmxmode mount option

Save one call by using the ptmxmode mount option.

Signed-off-by: Cedric Le Goater <2d8cace2254d4e43578d21933db015d84bcc468a@fr.ibm.com>
Signed-off-by: Daniel Lezcano <3211518dd4d87cb3f7ee12cb52e14b7fb2bc0446@fr.ibm.com>

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