[Mapserver-inspire] wrong content-type for exceptions

[Stephan Meißl]

On Wed, 2012-01-04 at 13:17 -0500, Daniel Morissette wrote: 
> On 12-01-04 12:33 PM, Stephan Meißl wrote:
> >
> > I noticed a html exception after the image, is this the intended
> > behavior?
> >
> 
> I don't think so. That would be a bug.
> 
> 
Was my feeling too -> added #4142