[llvm] [GlobalISel] Split Legalizer debug ouput into paragraphs. NFC (PR #143427)

[David Green via llvm-commits]

davemgreen wrote:

I happened just to be testing it to make sure it hadn't bitrotted. I'm not sure why it was merged in though, it is best to ask before doing that.

https://github.com/llvm/llvm-project/pull/143427