Fixes coq/coq#6815: 8.7 not a valid version number
Fixes coq/coq#6815: 8.7 not a valid version number
ybertot/opam-coq-archive,ybertot/opam-coq-archive,mattam82/coq-opam-archive,mattam82/coq-opam-archive,ybertot/opam-coq-archive,gmalecha/opam-coq-archive,coq/opam-coq-archive,gmalecha/opam-coq-archive,mattam82/coq-opam-archive,gmalecha/opam-coq-archive