Apply 2ae89c7a82ea to all active branches

Hi Greg,

Please apply 2ae89c7a82ea ("kconfig: Avoid format overflow warning from GCC 8.1") to all active branches. I am rather tired of seeing these warnings every time I need to compile. It will apply cleanly.

Thanks!
Nathan

Normally, as this is properly tagged for a stable tree, it will get automatically added after it is in a -rc release. But as that's a few weeks away, I'll take it now, thanks for letting me know.

greg k-h