[opam-devel] distfiles for ocaml.janestreet.com need an SSL upgrade

[Louis Gesbert]

> Louis, this manifests as a hard-to-debug error, since the curl command line
> doesn't seem to get output anywhere (even when using OPAMDEBUG=1).  Is there
> some other way than modifying the OPAM source code to see all the commands
> that are being shelled out?

Yes: download commands are printed with `-vv`, all commands with `-vvv`. This is because you are generally most interested in build commands ; might lack documentation though, I will check.