[flang-commits] [flang] [flang] Reject PARAMETER constants in NAMELIST groups (PR #178960)

[Peter Klausler via flang-commits]

klausler wrote:

Last point: warning message texts use "should", not "must".  Otherwise, LGTM, feel free to merge after updating the message.

https://github.com/llvm/llvm-project/pull/178960