Regarding check-shebang-scripts-are-executable

The suggestion when a file is not executable and it is supposed to be is:

 FILE: has a shebang but is not marked executable! If it is supposed to be executable, try: `chmod +x FILE` 

But chmod +x FILE is not enough in my setup, I have to do git update-index --chmod=+x FILE .

I propose to add that suggestion to output.