Refactor checks for Makefile updates so that 'make realclean' continues to work.
Refactor checks for Makefile updates so that 'make realclean' continues to work.

salortiz/rakudo,ugexe/rakudo,sergot/rakudo,niner/rakudo,jonathanstowe/rakudo,tony-o/deb-rakudodaily,MasterDuke17/rakudo,salortiz/rakudo,Leont/rakudo,tony-o/rakudo,softmoth/rakudo,cognominal/rakudo,sjn/rakudo,raydiak/rakudo,rjbs/rakudo,usev6/rakudo,zhuomingliang/rakudo,Gnouc/rakudo,retupmoca/rakudo,Gnouc/rakudo,labster/rakudo,tbrowder/rakudo,ungrim97/rakudo,skids/rakudo,softmoth/rakudo,pmurias/rakudo,ab5tract/rakudo,labster/rakudo,Leont/rakudo,awwaiid/rakudo,paultcochrane/rakudo,lucasbuchala/rakudo,rjbs/rakudo,retupmoca/rakudo,ungrim97/rakudo,zhuomingliang/rakudo,zostay/rakudo,ugexe/rakudo,paultcochrane/rakudo,usev6/rakudo,lucasbuchala/rakudo,awwaiid/rakudo,retupmoca/rakudo,dwarring/rakudo,sergot/rakudo,dwarring/rakudo,lucasbuchala/rakudo,tony-o/deb-rakudodaily,lucasbuchala/rakudo,azawawi/rakudo,b2gills/rakudo,tony-o/deb-rakudodaily,nunorc/rakudo,ab5tract/rakudo,skids/rakudo,samcv/rakudo,Leont/rakudo,laben/rakudo,ungrim97/rakudo,sjn/rakudo,rakudo/rakudo,mrgetit/rakudo,rjbs/rakudo,nbrown/rakudo,cygx/rakudo,LLFourn/rakudo,pmurias/rakudo,b2gills/rakudo,nunorc/rakudo,samcv/rakudo,ab5tract/rakudo,MasterDuke17/rakudo,LLFourn/rakudo,MasterDuke17/rakudo,awwaiid/rakudo,ungrim97/rakudo,niner/rakudo,ugexe/rakudo,zostay/rakudo,teodozjan/rakudo,awwaiid/rakudo,jonathanstowe/rakudo,tony-o/rakudo,teodozjan/rakudo,lucasbuchala/rakudo,nunorc/rakudo,ab5tract/rakudo,awwaiid/rakudo,cognominal/rakudo,sjn/rakudo,paultcochrane/rakudo,pmurias/rakudo,labster/rakudo,azawawi/rakudo,teodozjan/rakudo,salortiz/rakudo,dwarring/rakudo,tbrowder/rakudo,ab5tract/rakudo,cygx/rakudo,nbrown/rakudo,niner/rakudo,azawawi/rakudo,jonathanstowe/rakudo,retupmoca/rakudo,rakudo/rakudo,MasterDuke17/rakudo,usev6/rakudo,tbrowder/rakudo,b2gills/rakudo,sergot/rakudo,ugexe/rakudo,zostay/rakudo,dankogai/rakudo,tony-o/rakudo,jonathanstowe/rakudo,rakudo/rakudo,pmurias/rakudo,LLFourn/rakudo,MasterDuke17/rakudo,tony-o/deb-rakudodaily,salortiz/rakudo,sergot/rakudo,usev6/rakudo,zostay/rakudo,skids/rakudo,Gnouc/rakudo,nunorc/rakudo,raydiak/rakudo,samcv/rakudo,dakkar/rakudo,softmoth/rakudo,labster/rakudo,nbrown/rakudo,labster/rakudo,rakudo/rakudo,tony-o/deb-rakudodaily,raydiak/rakudo,cygx/rakudo,salortiz/rakudo,samcv/rakudo,cognominal/rakudo,dankogai/rakudo,labster/rakudo,tony-o/rakudo,skids/rakudo,samcv/rakudo,ungrim97/rakudo,LLFourn/rakudo,tony-o/rakudo,nbrown/rakudo,tbrowder/rakudo,skids/rakudo,dankogai/rakudo,MasterDuke17/rakudo,Leont/rakudo,sjn/rakudo,azawawi/rakudo,teodozjan/rakudo,laben/rakudo,b2gills/rakudo,jonathanstowe/rakudo,cygx/rakudo,tony-o/rakudo,Gnouc/rakudo,laben/rakudo,sjn/rakudo,usev6/rakudo,zhuomingliang/rakudo,tony-o/deb-rakudodaily,softmoth/rakudo,tbrowder/rakudo,rakudo/rakudo,azawawi/rakudo,niner/rakudo,nbrown/rakudo,cygx/rakudo,rakudo/rakudo,dwarring/rakudo,nbrown/rakudo,ugexe/rakudo,LLFourn/rakudo,paultcochrane/rakudo,laben/rakudo,Gnouc/rakudo,dankogai/rakudo,cognominal/rakudo,salortiz/rakudo,tbrowder/rakudo,softmoth/rakudo,paultcochrane/rakudo,tony-o/deb-rakudodaily,zhuomingliang/rakudo,b2gills/rakudo,Gnouc/rakudo,dankogai/rakudo,raydiak/rakudo,cognominal/rakudo