Add setopt promptpercent and promptsubst
Add setopt promptpercent and promptsubst

These options are required for Powerline to work in zsh, but the latter
is off by default.

xfumihiro/powerline,bartvm/powerline,QuLogic/powerline,Liangjianghao/powerline,s0undt3ch/powerline,kenrachynski/powerline,Luffin/powerline,blindFS/powerline,QuLogic/powerline,blindFS/powerline,bartvm/powerline,prvnkumar/powerline,lukw00/powerline,firebitsbr/powerline,seanfisk/powerline,seanfisk/powerline,IvanAli/powerline,magus424/powerline,S0lll0s/powerline,DoctorJellyface/powerline,s0undt3ch/powerline,wfscheper/powerline,bartvm/powerline,IvanAli/powerline,kenrachynski/powerline,Luffin/powerline,dragon788/powerline,keelerm84/powerline,xfumihiro/powerline,IvanAli/powerline,s0undt3ch/powerline,EricSB/powerline,kenrachynski/powerline,junix/powerline,russellb/powerline,areteix/powerline,xfumihiro/powerline,blindFS/powerline,junix/powerline,dragon788/powerline,Luffin/powerline,lukw00/powerline,firebitsbr/powerline,EricSB/powerline,junix/powerline,darac/powerline,firebitsbr/powerline,S0lll0s/powerline,prvnkumar/powerline,areteix/powerline,Liangjianghao/powerline,wfscheper/powerline,EricSB/powerline,xxxhycl2010/powerline,DoctorJellyface/powerline,seanfisk/powerline,russellb/powerline,darac/powerline,cyrixhero/powerline,darac/powerline,areteix/powerline,dragon788/powerline,cyrixhero/powerline,xxxhycl2010/powerline,prvnkumar/powerline,bezhermoso/powerline,Liangjianghao/powerline,DoctorJellyface/powerline,cyrixhero/powerline,bezhermoso/powerline,russellb/powerline,lukw00/powerline,magus424/powerline,xxxhycl2010/powerline,wfscheper/powerline,S0lll0s/powerline,QuLogic/powerline,keelerm84/powerline,magus424/powerline,bezhermoso/powerline