updated failure message in packages/conf-rdkit/conf-rdkit.1/opam
updated failure message in packages/conf-rdkit/conf-rdkit.1/opam

emillon/opam-repository,codinuum/opam-repository,emillon/opam-repository,Leonidas-from-XIV/opam-repository,ocaml/opam-repository,jhwoodyatt/opam-repository,ocaml/opam-repository,kkirstein/opam-repository,pqwy/opam-repository,pirbo/opam-repository,fpottier/opam-repository,fpottier/opam-repository,kkirstein/opam-repository,codinuum/opam-repository,jhwoodyatt/opam-repository,nberth/opam-repository,nberth/opam-repository,pqwy/opam-repository,Leonidas-from-XIV/opam-repository,pirbo/opam-repository