cfdisk: cleanup, rename menuitem struct

Signed-off-by: Karel Zak <kzak@redhat.com>
cfdisk: coding style, comments, etc.

Signed-off-by: Karel Zak <kzak@redhat.com>
libfdisk: don't count special whole-disk partitions

Signed-off-by: Karel Zak <kzak@redhat.com>
libfdisk: (sgi) cleanup, add infor about whole-disk partition

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

Signed-off-by: Karel Zak <kzak@redhat.com>
libfdisk: (sun) add info about whole-disk partition

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