[clang] [clang][analyzer] Fix false positive in StdLibraryFunctionsChecker for mmap with MAP_ANON (PR #219568)

[Daniel M. Zimmerman via cfe-commits]

dmzimmerman wrote:

> What is a commit signature? If you mean commit hash, then yes. It gets a new committer date, whixh impacts the hash. And of course since it gets a different xommit history (because it squashes all the commits of the PR into one). So yes, the hash will change.

I actually meant a (cryptographic) commit signature (the "verified" next to the commit; PGP, or SSH, or X.509, or whatever signature scheme one is using); I sign all my commits, whether the signatures will end up preserved at merge time or not. It's fine, of course, for the project to discard/squash away those signatures; I just didn't know what the practice was.

https://github.com/llvm/llvm-project/pull/219568