
This patch changes the PNG plug-in to fix a known bug which Mike Sweet
has fixed some time ago. Unfortunately Mike's changes haven't found
their way into the GIMP (AFAIK This is because he has never submitted
them to the patch directory, nor posted them to the list)

If Mike does eventually submit a patch it should probably replace this
one, but unless the users moan I don't think it matters who fixes the
problem, just so long as it gets fixed.

Because this is a bug-fix, it should go into CVS and 1.0.x maintenance
versions of the GIMP.

Thanks

Nick.
