message: Fix missing separator
diff: @@ -172,6 +172,7 @@ pub unsafe extern "C" fn execvp(file: *const c_char, argv: *const *mut c_char) -
  let path_env = CStr::from_ptr(path_env);
  for mut path in path_env.to_bytes().split(|&b| b == PATH_SEPARATOR) {
  let mut program = path.to_vec();
  + program.push(b'/');
  program.extend_from_slice(file.to_bytes());
  program.push(b'0');
  