message: add clang-format into emacs
diff: @@ -94,6 +94,10 @@ make check-formatting
  ;; You may need to comment this out when editing some files
  (add-hook 'c-mode-hook
  (lambda () (add-to-list 'write-file-functions 'delete-trailing-whitespace)))
  +
  +;; Import clang-format functionality into emacs (ctrl-tab to format the selected region)
  +(load "clang-format-3.8/clang-format.el")
  +(global-set-key [C-tab] 'clang-format-region)
  ```
  