Allow nil offsets for FS.read
Allow nil offsets for FS.read

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