[RFC] MAINTAINERS tag for cleanup robot

[Matthew Wilcox]

On Sat, Nov 21, 2020 at 08:50:58AM -0800, trix at redhat.com wrote:
> The fixer review is
> https://reviews.llvm.org/D91789
> 
> A run over allyesconfig for x86_64 finds 62 issues, 5 are false positives.
> The false positives are caused by macros passed to other macros and by
> some macro expansions that did not have an extra semicolon.
> 
> This cleans up about 1,000 of the current 10,000 -Wextra-semi-stmt
> warnings in linux-next.

Are any of them not false-positives?  It's all very well to enable
stricter warnings, but if they don't fix any bugs, they're just churn.