message: Fix missing nul
diff: @@ -88,7 +88,7 @@ pub unsafe extern "C" fn getopt_long(
  stdio::fputs(*argv as _, &mut *stdio::stderr);
  stdio::fputs(": option '--\0".as_ptr() as _, &mut *stdio::stderr);
  stdio::fputs(current_arg, &mut *stdio::stderr);
  - stdio::fputs("' requires an argument\n".as_ptr() as _, &mut *stdio::stderr);
  + stdio::fputs("' requires an argument\n\0".as_ptr() as _, &mut *stdio::stderr);
  return b'?' as c_int;
  }
  }
  