Fix some formatting, wording tweaks
Fix some formatting, wording tweaks

* 80 character lines
* remove some unneeded sentences
* use subprocess.call instead of subprocess.Popen to avoid any potential races

kynikos/qtile,nxnfufunezn/qtile,tych0/qtile,w1ndy/qtile,kopchik/qtile,aniruddhkanojia/qtile,himaaaatti/qtile,kiniou/qtile,w1ndy/qtile,qtile/qtile,dequis/qtile,ramnes/qtile,soulchainer/qtile,kynikos/qtile,andrewyoung1991/qtile,flacjacket/qtile,farebord/qtile,flacjacket/qtile,xplv/qtile,zordsdavini/qtile,encukou/qtile,soulchainer/qtile,de-vri-es/qtile,kopchik/qtile,cortesi/qtile,dequis/qtile,jdowner/qtile,EndPointCorp/qtile,nxnfufunezn/qtile,zordsdavini/qtile,encukou/qtile,rxcomm/qtile,apinsard/qtile,qtile/qtile,apinsard/qtile,aniruddhkanojia/qtile,kiniou/qtile,kseistrup/qtile,EndPointCorp/qtile,andrewyoung1991/qtile,frostidaho/qtile,StephenBarnes/qtile,xplv/qtile,de-vri-es/qtile,StephenBarnes/qtile,kseistrup/qtile,jdowner/qtile,tych0/qtile,rxcomm/qtile,frostidaho/qtile,ramnes/qtile,cortesi/qtile,himaaaatti/qtile,farebord/qtile