Using short or long for with attribute #[endian = "..."]

[xoac]

When working with MixedEndian(Des)/(S)erializer is possible to use types that doesn't implement this trait for field. You just need to add #[endian] attribute. This is just to decide use a long or short form.

#[derive(EndianSize, MixedEndianSerialize)]
struct A {
  #[endian = "little"]
  a: i32,
  #[endian = "le"]
  b: i32,
}

I feel better with long form.