Remove deadcode in SafeArrayPutElement, as lpBstr cannot be NULL
because of the check at the top of the function on pvData (found by
Coverity).

Free ptr in console_input_append_hist before returning, otherwise it
will be leaked (found by Coverity).
Remove the setting of last error on mem_alloc failure, as it is already
done in mem_alloc.

Also add numero-sign to Courier.