[llvm] [llvm-dwp] Give more information when incompatible version found (PR #168511)

[Jinjie Huang via llvm-commits]

Jinjie-Huang wrote:

@dyung Thanks for pointing this out, I've submitted a fix [pr](https://github.com/llvm/llvm-project/pull/168825).

https://github.com/llvm/llvm-project/pull/168511