[llvm] Fix typo in section name for STYP_EXCEPT (PR #161959)

[James Henderson via llvm-commits]

jh7370 wrote:

Oh, you need to mark your email address as not private in GitHub for this to be merged. Please see https://llvm.org/docs/DeveloperPolicy.html#email-addresses.

https://github.com/llvm/llvm-project/pull/161959