Comment 4 for bug 1050938

About the patch:
The diff only fixes the most obvious "typo" - a leftover from the conversion of the old floating dialog to the dockable one (the layout had been slightly changed: the 'Set' button did get moved to the bottom row).

AFAICT the third column of the 'TopTable' table could be removed altogether, but I had troubles getting the 'Description' text field aligned properly while reducing the larger than needed padding at the right side of the table (at the moment, the padding mostly seems to result from column spacings set for 'TopTable').

Maybe I'll make another attempt to make it match closer to the table layout from 'objects-attributes.{cpp,h}, but I'm afraid that's likely way beyond what I can do without C++ and more detailed GTK+ skills.