fullfile does not accept empty file argument

[David Bateman]

Jesper Højvang Jensen wrote:
> Bug report for Octave 2.9.14 configured for i486-pc-linux-gnu
>
> Description:
> -----------
>
> When specifying an empty string as the final argument to fullfile, it 
> stops with an error. In the matlab equivalent, specifying an empty last 
> argument is recommended when building a pathname.
>
>   
I believe the attached patch is matlab compatible

D.



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David Bateman                                David.Bateman at motorola.com
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