message: Fix bug in gif encoding of rgba8 frames
diff: @@ -316,7 +316,7 @@ impl<W: Write> Encoder<W> {
  match color {
  ColorType::Rgb8 => self.encode_gif(Frame::from_rgb(width, height, data)),
  ColorType::Rgba8 => {
  - self.encode_gif(Frame::from_rgb(width, height, &mut data.to_owned()))
  + self.encode_gif(Frame::from_rgba(width, height, &mut data.to_owned()))
  },
  _ => Err(ImageError::Unsupported(UnsupportedError::from_format_and_kind(
  ImageFormat::Gif.into(),
  