Small Tidy of module search path logic.  We can assume dirname is normalized
Small Tidy of module search path logic.  We can assume dirname is normalized

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