message: Improved fd_write debugging
diff: @@ -1221,7 +1221,14 @@ pub fn fd_write(
  iovs_len: u32,
  nwritten: WasmPtr<u32>,
  ) -> __wasi_errno_t {
  + // If we are writing to stdout or stderr
  + // we skip debug to not pollute the stdout/err
  + // and do debugging happily after :)
  + if fd != __WASI_STDOUT_FILENO && fd != __WASI_STDERR_FILENO {
  debug!("wasi::fd_write: fd={}", fd);
  + } else {
  + trace!("wasi::fd_write: fd={}", fd);
  + }
  let (memory, state) = get_memory_and_wasi_state(ctx, 0);
  let iovs_arr_cell = wasi_try!(iovs.deref(memory, 0, iovs_len));
  let nwritten_cell = wasi_try!(nwritten.deref(memory));
  