cfdisk: remove [Load] from menu

This functionality will be rarely used, so it does not make sense to
waste screen space with this menu item. It's enough to provide this
functionality in "Select label type" dialog (cfdisk --zero and then
'L' command).

Signed-off-by: Karel Zak <kzak@redhat.com>
cfdisk: cleanup menuitem draw functions

Signed-off-by: Karel Zak <kzak@redhat.com>
libfdisk: fix table_add_freespace(), add debug messages

Signed-off-by: Karel Zak <kzak@redhat.com>
libfdisk: (dos) be sure that sorted EBR list is terminated

Signed-off-by: Karel Zak <kzak@redhat.com>