How to get back a file which filename contains whitespace

[Maciej Pilichowski]

Hello,

  This is my first post here so first of all I would like to thank Ole 
Tange for this great software. Running script with 6 cores is much 
better than one ;-)

  The only problem I have so far is with receiving the processed files 
back. Consider such option:

--trc "output/Done {}"

as the result I get error that file
output/Done

does not exist.

  How I can pass the filename to parallel for return, when (as above) 
it contains a whitespace?

  From what I heard at Stack Overflow it could be a bug in Parallel, I 
am not sure though.

Kind regards,