[clang] [clang][analyzer] Fix alignment of entries in -analyzer-help (PR #190570)

[Donát Nagy via cfe-commits]

https://github.com/NagyDonat approved this pull request.

LGTM.

I'm not familiar with the internals of CodeChecker, but I asked Tibor Brunner (@bruntib, an experienced developer on that project) who confirmed that this is unlikely to cause problems there.

https://github.com/llvm/llvm-project/pull/190570