util.prosodyctl.cert: Look for certificates in a consistent order Shortest first, then alphabetically, so that it prefers the base domain over subdomains. Fixes that it might otherwise pick a random sub-domain for filename on each run, cluttering the certs directory and potentially tricking Prosody into using an older certificate that might be about to expire.

-- Unknown platform stub
module:set_global();

-- TODO Do things that make sense if we don't know about the platform