fix expandtab setting
fix expandtab setting

atmlvs/dotvimmy,meadoch1/dotvim,holbrook/dotvim,JosephBuchma/dotvim,pairyo/dotvim,hiemanshu/dotvim,hlee/dotvim,HowHai/custom_dotvim,satek/dotvim,ismo1/vim,ofridagan/dotvim,rocLv/dotvim,astrails/dotvim,TaopaiC/dotvim,SammyLin/dotvim,dpaluy/dotvim,keysen/dotvim,KensoDev/dotvim,PHronek/.vim