message: Remove unsafe vec init
diff: @@ -98,9 +98,7 @@ pub(crate) fn decode(mut stream: impl BufRead) -> io::Result<Option<ServerOp>> {
  inject_io_failure()?;
  // Read a line, which should be human readable.
  - #[allow(unsafe_code)]
  - #[allow(clippy::uninit_assumed_init)]
  - let mut command_buf: [u8; 4096] = unsafe { std::mem::MaybeUninit::uninit().assume_init() };
  + let mut command_buf: [u8; 4096] = [0; 4096];
  let command_len = read_line(&mut stream, &mut command_buf)?;
  if command_len == 0 {
  