[llvm] [llvm-exegesis][Docs] --dump-object-to-disk option is specified by filename rather than bool (PR #141178)

[Aiden Grossman via llvm-commits]

https://github.com/boomanaiden154 approved this pull request.

Yeah, looks like this was changed in 8e0ee5ab9f34cc98e4f4b62bbceed45a71281e45 but never got reflected in the docs. Thanks for updating this.

https://github.com/llvm/llvm-project/pull/141178