Really quick thing [spotted by joelanders](https://trac.torproject.org/projects/tor/ticket/9380#comment:24). The dir-spec's [description of an a-line](https://gitweb.torproject.org/torspec.git/blob/HEAD:/dir-spec.txt#l1591) says... ``` Address and portlist are as for "or-address" as specified in section 2.1.1. ``` Unless I'm missing something this (and or-address) only accept a single address:port, not a list of ports.