Fix a long-standing bug where I used a 'break;' instead of a 'continue;';
you had to have multiple ISA boards in non-PnP mode with an 'unknown' board
with a lower MAC address to find this one. Since I have 4 3c5x9 boards
in my test box I was somewhat confused when this happened. :)
Make the messages printed by ep_isa_identify() a little more consistent;
we'll only see them in verbose boot mode but it makes me feel better if
they look nice.