[clang] [llvm] [clang-tools-extra] [mlir] [emacs] Fix Emacs library formatting (PR #76110)

[Kirill Bobyrev via cfe-commits]

kirillbobyrev wrote:

Thanks!

As a side note: I did work on `clang/tools/clang-rename/clang-rename.el` in the past, but `clang-rename` isn't used much these days and, arguably, is superseded by `clangd` + LSP in most cases. I don't know if anyone still uses `clang-rename.el` (I know there was a couple of users within Google, but I'm pretty sure most switched to LSP), so I would say it's OK (and probably desirable) to delete that file.

@darkfeline please let me know if you actually use the `clang-rename` integration.

https://github.com/llvm/llvm-project/pull/76110