That is, it would include the newline in the prompt.

So...  I think basically this works as intended currently: comint only
triggers the password-reading behaviour if the prompt is on the current
line (i.e., without a newline), so I'm closing this bug report.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no