[clang] Fix print module manifest file for macos (PR #122370)

[Chuanqi Xu via cfe-commits]

ChuanqiXu9 wrote:

> Should this be backported to older supported releases as well? (FWIW, I think so.)

But I am not sure if there is still release there.

https://github.com/llvm/llvm-project/pull/122370