[libcxx] [clang] [compiler-rt] [llvm] fix python SyntaxWarnings in check-all output (PR #72538)

[Louis Dionne via cfe-commits]

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

LGTM. @petrhosek might want to take a quick look at the compiler-rt part though.

https://github.com/llvm/llvm-project/pull/72538