take two: tty bug with long 'autodescribe' text

take two: tty bug with long 'autodescribe' text

Messages on tty which bypass message history weren't handling long
lines properly.  If the text wrapped to line 2, that continuation
portion was left on the screen after whatever operation that put it
here was finished.  (To reproduce:  assign a long name to a monster
with a long type name so that the combined length exceeds the display
width, then move the cursor over it with ';' or '/' while autodescribe
is On.)

This time prompting isn't adversely affected.