[llvm] [BOLT][NFC] Added double escape characters (PR #93348)

[David Blaikie via llvm-commits]

dwblaikie wrote:

> @sayhaan Please update summary removing internal task number reference.

FWIW, I think we did land on a policy where it's acceptable (though I'm not suggesting to encourage it) to include internal bug/issue/etc references in commit messages (so long as they aren't used as a substitute for comprehensive explanations that anyone can read upstream) but not in source code.

https://github.com/llvm/llvm-project/pull/93348