From github.com:llvm/llvm-project
 * branch                      main       -> FETCH_HEAD
   8c939f54b490..6eb32a2fa0d1  main       -> origin/main
Switched to branch 'main'
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  (use "git pull" to update your local branch)
HEAD is now at 6eb32a2fa0d1 [clang] Change placeholder from `undef` to `poison` (#131533)