Allow blocks given to grep have multiple arguments.
Allow blocks given to grep have multiple arguments.

Fixes #71544

nbrown/rakudo,laben/rakudo,tbrowder/rakudo,nbrown/rakudo,cognominal/rakudo,Gnouc/rakudo,rakudo/rakudo,raydiak/rakudo,nunorc/rakudo,azawawi/rakudo,labster/rakudo,ab5tract/rakudo,sjn/rakudo,MasterDuke17/rakudo,cognominal/rakudo,skids/rakudo,samcv/rakudo,paultcochrane/rakudo,samcv/rakudo,sjn/rakudo,awwaiid/rakudo,ab5tract/rakudo,rakudo/rakudo,lucasbuchala/rakudo,paultcochrane/rakudo,sjn/rakudo,tbrowder/rakudo,cognominal/rakudo,salortiz/rakudo,salortiz/rakudo,sergot/rakudo,sergot/rakudo,dankogai/rakudo,LLFourn/rakudo,tony-o/rakudo,LLFourn/rakudo,zhuomingliang/rakudo,Gnouc/rakudo,labster/rakudo,samcv/rakudo,ugexe/rakudo,b2gills/rakudo,tony-o/rakudo,Leont/rakudo,nbrown/rakudo,sergot/rakudo,LLFourn/rakudo,nbrown/rakudo,raydiak/rakudo,sjn/rakudo,nunorc/rakudo,b2gills/rakudo,Leont/rakudo,cygx/rakudo,laben/rakudo,rakudo/rakudo,lucasbuchala/rakudo,jonathanstowe/rakudo,ungrim97/rakudo,dankogai/rakudo,softmoth/rakudo,ab5tract/rakudo,samcv/rakudo,nbrown/rakudo,jonathanstowe/rakudo,salortiz/rakudo,MasterDuke17/rakudo,tony-o/rakudo,ab5tract/rakudo,cygx/rakudo,cygx/rakudo,lucasbuchala/rakudo,cognominal/rakudo,ungrim97/rakudo,b2gills/rakudo,nunorc/rakudo,zhuomingliang/rakudo,skids/rakudo,softmoth/rakudo,ungrim97/rakudo,b2gills/rakudo,skids/rakudo,skids/rakudo,zostay/rakudo,salortiz/rakudo,Leont/rakudo,azawawi/rakudo,sergot/rakudo,zhuomingliang/rakudo,ab5tract/rakudo,ugexe/rakudo,azawawi/rakudo,softmoth/rakudo,paultcochrane/rakudo,usev6/rakudo,samcv/rakudo,tbrowder/rakudo,dankogai/rakudo,dankogai/rakudo,ungrim97/rakudo,salortiz/rakudo,azawawi/rakudo,usev6/rakudo,Gnouc/rakudo,tbrowder/rakudo,lucasbuchala/rakudo,ugexe/rakudo,MasterDuke17/rakudo,awwaiid/rakudo,jonathanstowe/rakudo,dankogai/rakudo,tony-o/rakudo,tbrowder/rakudo,awwaiid/rakudo,Leont/rakudo,ungrim97/rakudo,tony-o/rakudo,raydiak/rakudo,sjn/rakudo,labster/rakudo,raydiak/rakudo,softmoth/rakudo,azawawi/rakudo,usev6/rakudo,ugexe/rakudo,salortiz/rakudo,MasterDuke17/rakudo,jonathanstowe/rakudo,rakudo/rakudo,awwaiid/rakudo,Gnouc/rakudo,nbrown/rakudo,labster/rakudo,MasterDuke17/rakudo,skids/rakudo,usev6/rakudo,cygx/rakudo,Gnouc/rakudo,Gnouc/rakudo,MasterDuke17/rakudo,ugexe/rakudo,paultcochrane/rakudo,zostay/rakudo,zhuomingliang/rakudo,jonathanstowe/rakudo,b2gills/rakudo,labster/rakudo,zostay/rakudo,LLFourn/rakudo,laben/rakudo,paultcochrane/rakudo,softmoth/rakudo,tbrowder/rakudo,zostay/rakudo,LLFourn/rakudo,nunorc/rakudo,rakudo/rakudo,lucasbuchala/rakudo,awwaiid/rakudo,usev6/rakudo,cognominal/rakudo,labster/rakudo,laben/rakudo,tony-o/rakudo,rakudo/rakudo,cygx/rakudo