disklabel coredumps in the case you don't specify FS type

[Nicolas Thery]

2008/11/25 Antonio Huete Jimenez <ahuete.devel at gmail.com>:
> Hi,
>
> Seems that disklabel coredumps in the case you don't specify FS type on a
> line when editing.
>
>  g:    1048576   14942208    4.2BSD    #     512.000MB
>  h:   12288000   15990784    4.2BSD    #    6000.000MB
> i:      *       *
> ~
> /tmp/EdDk.AtVvnxo30B: 30 lines, 806 characters.
> Segmentation fault (core dumped)
>
> Patch below fixes this issue:

Patch slightly modified and committed.  Thanks.