utils/jpgicc/iccjpeg.c: add comment about uint checked to be less than zero.
utils/jpgicc/iccjpeg.c: add comment about uint checked to be less than zero.

Enseed/lcms2,Enseed/lcms2,mindw/little-CMS-cmake,Enseed/lcms2,mindw/little-CMS-cmake,mindw/little-CMS-cmake