one verdict for a package repository served over https
probe-pkgrepo answers one question about a package repository served
over https: does its index answer, and does it list at least one
package. pkg_add enumerates a remote repository from the
<a href="*.tgz"> entries of that index page, so a listing that
answers 200 and names nothing is a repository nothing can be
installed from -- an outage this probe is the only thing that sees.

Silent and rc 0 when the index is good. rc 1 and a single summary
line on stderr otherwise: unreachable, timed out, or answering with
an empty listing. Read-only, unprivileged, no state, no
configuration: sh and ftp(1) of the base system and hn-timeout,
timeout(1) with a race closed (sysutils/hn-timeout), are the only
tools it needs.

    probe-pkgrepo <fqdn> [timeout]

timeout defaults to 15 seconds.

Maintainer: Jean-Gerard Pailloncy <j-g@pailloncy.com>
