moot and unposixy error message

[Benno Schulenberg]

Hi,

In src/od.c around line 1820 it says this:

  if (limit_bytes_to_format)
    {
      end_offset = n_bytes_to_skip + max_bytes_to_format;
      if (end_offset < n_bytes_to_skip)
        error (EXIT_FAILURE, 0, _("skip-bytes + read-bytes is too large"));
    }

Since max_bytes_to_format cannot be negative, the second 'if' will 
never trigger, so the whole six lines are moot.

Further, the Open Group says that 'od' should not produce an error 
when '-j' plus '-N' is longer than the file, so the above section 
can be removed.

  http://www.opengroup.org/onlinepubs/7990989775/xcu/od.html --
  "If count bytes of input (after successfully skipping, if -j skip 
  is specified) are not available, it will not be considered an error; 
  the od utility will format the input that is available."

Benno