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

[via llvm-commits]

darkfeline wrote:

@d0k @r4nt @kirillbobyrev @jpienaar tagging people based on git blame on the files, apologies in advance if you aren't the right persons for this.

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