[PATCH] Fix libpng warning about unrecognized profile

[Dirk Hohndel]

On Wed, Jul 16, 2014 at 10:02:34AM +0400, Sergey Starosek wrote:
> During Subsurface startup there are several warnings reported:
> libpng warning: iCCP: Not recognizing known sRGB profile that has been edited
> The reason is explained at https://wiki.archlinux.org/index.php/Libpng_errors

I keep doing that - but these must have slipped through.
The most annoying thing is that the wrong RGB profile also adds 70k to the
size of the icons...

/D