CLang Diagnostics Overview

Hi all,

I don't know if this is useful to anyone, but to keep track of the
quickly evolving set of CLang diagnostics flags, I wrote a short
program to track and generate an overview of these flags (not sure if
this already exists):

Today's overview can be found here:

(sorry, my DOT fu isn't good enough to make that actually lay out the
way I want).
The tool uses colors to indicate the flags i already use in my
project, the disabled flags, the redundant flags, the ones that clang
ignores, and the flags my project is still missing.