NOte min size for find_trim
NOte min size for find_trim

See https://github.com/libvips/libvips/issues/1392

jcupitt/libvips,jcupitt/libvips,lovell/libvips,lovell/libvips,lovell/libvips,jcupitt/libvips,lovell/libvips,jcupitt/libvips