[flang-commits] [flang] Revert "Revert "[flang] Fix execute_command_line cmdstat is not set when error occurs" (#96365)" (PR #96774)

[Daniel Chen via flang-commits]

https://github.com/DanielCChen approved this pull request.

Thanks for updating the tests.
The code LGTM. 
I am not familiar with the RT testing, so I will defer it to other reviewers.

https://github.com/llvm/llvm-project/pull/96774