[clang-tools-extra] [flang] [clang] [llvm] [flang] GETLOG runtime and extension implementation: get login username (PR #74628)

[via cfe-commits]

https://github.com/jeanPerier commented:

Described logic in your comment looks good to me. I have two comments regarding the implementation.

https://github.com/llvm/llvm-project/pull/74628