dhclient starts on all interfaces referred to in dhclient.conf regardless of command-line parameters

[Ted Lemon]

Just to be clear, the way I think it should work is this:

      * If you specify no interfaces in the config file or on the
        command line, you get all interfaces on which DHCP makes sense
        (generally speaking, all broadcast interfaces).

      * If you specify interfaces in the config, and no interfaces on
        the command line, you get the interfaces you specified in the
        config, and no others.

      * If you specify one or more interfaces on the command line, you
        get only those interfaces, regardless of what it says in the
        config file.

I consider it a bug that it doesn't currently work this way.   However,
as I say, David is the authority here, not me.