From github.com:llvm/llvm-project
 * branch                      main       -> FETCH_HEAD
   284ef1b4acff..1c4e03aa2619  main       -> origin/main
Switched to branch 'main'
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  (use "git pull" to update your local branch)
HEAD is now at 1c4e03aa2619 [NewPM] port x86-return-thunks to new pass manager (#176226)