Cook: Colliding with the SHA prefix of Linux's initial Git commit

Kees Cook describeshis work resulting in a kernel documentation commit whose ID shares thesame first 12 characters as the initial commit in the kernel's repository.

This is not yet in the upstream Linux tree, for fear of breakingcountless other tools out in the wild. But it can serve as a testcommit for those that want to get this fixed ahead of any futurecollisions (or this commit actually landing).

LWN looked at commit-ID collisions a fewweeks back.