NOTICE: /dev/cuaa%d -> /dev/cuad%d renaming

[Randy Bush]

> Tie DCD to DTR. (I think)

i was not clear.  this affects production racks in strange
bunker-like facilities.

and there is no access to wiring in the middle.  the cisco
2511 is molded plastic, molded rubber, and metal all the way
to the rj45.  the rj45 shell is pre-wired except for
deciding which color wire to push into which pin-hole.  the
pin holes are deep and they are all wired and in place in
production pops.

sure we can strip and add a wire inside each shell.  but
it'll be 15 minutes work times *many* systems, and will cost
a bunch of money.

randy