cfdisk: fix menu behavior after writing changes

cfdisk: fix menu behavior after writing changes

Florian wrote:
  after a successful write, cfdisk remains on the "Write" cursor and
  furthermore when navigating to "Quit" will continue to  show
  "...without writing changes", despite there were writes. This patch
  addresses that.

Based on patch from Florian Zimmermann <florian.zimmermann@gmail.com>

Signed-off-by: Karel Zak <kzak@redhat.com>
Closes: #927041
Gbp-Pq: Topic upstream
Gbp-Pq: Name cfdisk-fix-menu-behavior-after-writing-changes.patch