Fix minor typo in powerline.vim
Fix minor typo in powerline.vim

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