Support 'rs' and 'rs+' for flags in fs.open()
Support 'rs' and 'rs+' for flags in fs.open()

rjeli/luvit,GabrielNicolasAvellaneda/luvit-upstream,bsn069/luvit,bsn069/luvit,boundary/luvit,luvit/luvit,luvit/luvit,sousoux/luvit,kaustavha/luvit,kaustavha/luvit,AndrewTsao/luvit,DBarney/luvit,AndrewTsao/luvit,AndrewTsao/luvit,kaustavha/luvit,boundary/luvit,bsn069/luvit,rjeli/luvit,rjeli/luvit,zhaozg/luvit,GabrielNicolasAvellaneda/luvit-upstream,DBarney/luvit,sousoux/luvit,rjeli/luvit,boundary/luvit,sousoux/luvit,boundary/luvit,boundary/luvit,sousoux/luvit,GabrielNicolasAvellaneda/luvit-upstream,connectFree/lev,GabrielNicolasAvellaneda/luvit-upstream,boundary/luvit,connectFree/lev,sousoux/luvit,DBarney/luvit,DBarney/luvit,sousoux/luvit,zhaozg/luvit