usetup > format page: tell which partition

reactos-bootcd-0.4.15-dev-5352-g6755921-x86-gcc-lin-dbg

1. Create 1 Primary, 1 Extended + 1 Logical partitions. (As in CORE-18618).
2. Get 1+1 Format pages.
2r. Format page tells which disk is involved, but not which partition is about to be formatted.
(First, Primary. Second, Logical.)