message: Fix an ouput typo in `ci_sanity.sh`
  In the last PR (clang sanity check) the output message should be changed:
  `due to the absence of Python code changes`
  >
  `due to the absence of .h or .cc code changes`
diff: @@ -460,7 +460,7 @@ do_clang_format_check() {
  if [[ -z "${CLANG_SRC_FILES}" ]]; then
  echo "do_clang_format_check will NOT run due to --incremental flag and "\
  -"due to the absence of Python code changes in the last commit."
  +"due to the absence of .h or .cc code changes in the last commit."
  return 0
  fi
  elif [[ -z "$1" ]]; then
  