bug#37359: [PATCH] Fix ignored Motif scrollbar resources.

[martin rudalics]

> On Motif scrollbars, "foreground" has no meaning, while "background"
> means the truck and arrow colors, and "trough" means the background
> of the entire widget.  I have hooked up the Emacs scrollbar
> "foreground" color to the XmNbackground resource, and the
> "background" color to XmNtroughColor.  This is more in line with how
> Xaw scrollbars behave.

Sounds reasonable so I intend to install it.  I suppose that you have
not done any copyright assignment so I'll mark this as a tiny change.

Thanks, martin