[llvm] [LLVM] Update exception handling maintainer (PR #120585)

[David Blaikie via llvm-commits]

dwblaikie wrote:

Yeah, not sure who'd be best for DWARF EH - @MaskRay has reviewed some patches in that area lately, but maybe there's someone else with more bandwidth?

https://github.com/llvm/llvm-project/pull/120585