Here is what I get when I try it:
gvfs-open: file:///home/rdyer/gnome-dictionary%20--look-up%20test: error opening location: Error stating file '/home/rdyer/gnome-dictionary --look-up test': No such file or directory
So for some reason it is trying to make that a file instead of executing the command.
Here is what I get when I try it:
gvfs-open: file:// /home/rdyer/ gnome-dictionar y%20--look- up%20test: error opening location: Error stating file '/home/ rdyer/gnome- dictionary --look-up test': No such file or directory
So for some reason it is trying to make that a file instead of executing the command.