the nul-terminated string helper desk chair rearrangement

[Andrew Lunn]

> > > [1]: https://elixir.bootlin.com/linux/v6.6-rc6/source/include/linux/fortify-string.h#L292

I found that https://elixir.bootlin.com/linux is the best way to find
Documentation for functions and structures. I would suggest try it
first, and only when what fails to start using grep.

       Andrew