Fix coq-corn.1.1.0 for opam 2
Fix coq-corn.1.1.0 for opam 2

coq/opam-coq-archive,mattam82/coq-opam-archive,mattam82/coq-opam-archive,mattam82/coq-opam-archive,gmalecha/opam-coq-archive,gmalecha/opam-coq-archive,gmalecha/opam-coq-archive