before printing it. Terminate when we come to a 0xff byte. This
allows there to be zero or more additional info fields printed
correctly. Before, the old code would print bogons or dump core when
presented with this case.
I don't know what the spec says about this, exactly, but this allows
me to do a dumpcis of my non-ATA AMP 4M FLASH cards w/o pccardc
dumping core.