wineshelllink: fall back to $HOME if $HOME/Desktop does not exist

[Jeff L]

James Hawkins wrote:
>>
>> Is there a reason why we should not just create a Desktop directory?
>> Seems neater than cluttering up the home.
>>
> I sure wouldn't want some app creating a Desktop directory in my home
> folder if it didn't exist before.
I don't know which is better, a lot of files appearing in my home or a 
new directory.  Lots of apps create directories to organise files and we 
take it on the chin.

Jeff Latimer