[RFC] One more ARI related fix

[Eli Zaretskii]

> From: "Pierre Muller" <pierre.muller@ics-cnrs.unistra.fr>
> Date: Fri, 18 Mar 2011 15:49:09 +0100
> 
> +		  error(_("Cannot subscript requested type."));

This should be

		  error (_("Cannot subscript requested type."));