listgeo not printing corners correctly for PixelIsPoint

[normvcr]

In GTIFPrintCorners(), the following code/hack needs to be added at the very top:

if( PixelIsPoint ) {

--xsize; --ysize;

}

For example, suppose an image extent has a width of 10m, with 5m pixels.

In PixelIsArea, the image has 2 pixels in the width, at locations 2.5m and 7.5m.

In PixelIsPoint, the image has 3 pixels in the width, at 0m, 5m and 10m.