no need to set *stop on fill_region() error return
no need to set *stop on fill_region() error return

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