oops, GRAY is an lcms2 feature
oops, GRAY is an lcms2 feature

mcanthony/libvips,leiyangyou/libvips,jcupitt/libvips,mcanthony/libvips,lovell/libvips,leiyangyou/libvips,mcanthony/libvips,leiyangyou/libvips,lovell/libvips,wishabi/libvips,wishabi/libvips,lovell/libvips,jcupitt/libvips,wishabi/libvips,leiyangyou/libvips,jcupitt/libvips,wishabi/libvips,lovell/libvips,jcupitt/libvips,mcanthony/libvips