[flang-commits] [flang] [flang] Handle missing LOGIN_NAME_MAX definition in runtime (PR #77775)

[Rainer Orth via flang-commits]

rorth wrote:

I happened to notice that @kazutakahirata silently fixed the issue slightly differently in fb09447132cb192a0ef5082d4a4bae30f893e501 and 18734f606635f4f4270f911b68060890ce3dd94a.

https://github.com/llvm/llvm-project/pull/77775