bug#10573: line-move-visual=t doesn't help in the minibuffer

[jidanni]

   line-move-visual is a variable defined in `simple.el'.
   Its value is t

   Documentation:
   When non-nil, `line-move' moves point by visual lines.
   This movement is based on where the cursor is displayed on the
   screen, instead of relying on buffer contents alone.  It takes
   into account variable-width characters and line continuation.

That is all very nice, except there is no mention of how to get it to
also affect wrapped lines in the minibuffer!