[dev] [patch] tree graphics fix

[Vilius Šumskas]

Quoting Chuck Hagenbuch <chuck at horde.org>:

> Quoting Vilius Šumskas <vilius at lnk.lt>:
>
>> ghm. Very strange, before this fix I've got no slashes at all:
>>
>> https://mail.lnk.lt/horde/graphics/treefolder.gif
>> https://mail.lnk.lt/horde/graphics/treefolderopen.gif
>> ....
>>
>> and so on in DataTree Browser page.
>
> Look at what I just committed to html.php.

Looks ok. Thanks.

--
    Vilius