message: rage: Call ArmoredWriter::finish after encrypting
diff: @@ -275,7 +275,10 @@ fn encrypt(opts: AgeOptions) -> Result<(), error::EncryptError> {
  };
  io::copy(&mut input, &mut output).map_err(map_io_errors)?;
  - output.finish().map_err(map_io_errors)?;
  + output
  + .finish()
  + .and_then(|armor| armor.finish())
  + .map_err(map_io_errors)?;
  Ok(())
  }
  