Ensure max_band vector is aligned on a 16-byte boundary
Ensure max_band vector is aligned on a 16-byte boundary

See https://github.com/mstorsjo/llvm-mingw/issues/190

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