Don't nuke submodule in clean [ci skip]
Don't nuke submodule in clean [ci skip]

DBarney/luvit,rjeli/luvit,bsn069/luvit,zhaozg/luvit,GabrielNicolasAvellaneda/luvit-upstream,GabrielNicolasAvellaneda/luvit-upstream,DBarney/luvit,bsn069/luvit,bsn069/luvit,GabrielNicolasAvellaneda/luvit-upstream,luvit/luvit,GabrielNicolasAvellaneda/luvit-upstream,rjeli/luvit,DBarney/luvit,DBarney/luvit,kaustavha/luvit,luvit/luvit,kaustavha/luvit,rjeli/luvit,zhaozg/luvit,kaustavha/luvit,rjeli/luvit