I suspect that this might be a duplicate of a very old bug: #51633
That being said, there are also other webpages saying that the gksu programs are not parsing the command line properly and that you should use '--' to convert a sudo command into a gksudo command.
I suspect that this might be a duplicate of a very old bug: #51633
That being said, there are also other webpages saying that the gksu programs are not parsing the command line properly and that you should use '--' to convert a sudo command into a gksudo command.