When installing a thornlist from a URL, GetComponents relies on the presence of wget and does not attempt to use curl.
Pull request is here: https://github.com/gridaphobe/CRL/pull/9/files
@Steven R. Brandt since you asked for this, do you have time to review it?
Approved by @Steven R. Brandt in pull request.
Applied as git hash 9bebdea "GetComponents: support curl to download initial thornlist" of CRL