Treat failure to set up completions differently from failure to load Linenoise
Treat failure to set up completions differently from failure to load Linenoise

For the former, we should deliver a little bit of information to help
developers fix the issue.  For the latter, it's usually just that
Linenoise isn't installed, so it's not a big deal

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