[clang] [llvm] [Chore] Fix `formating` typos. NFC. (PR #106817)

[via llvm-commits]

c8ef wrote:

```
  | # \| /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-c4bpt-1/llvm-project/github-pull-requests/libcxx/test/std/utilities/charconv/charconv.to.chars/integral.pass.cpp:25:64: error: declaration of 'uint64_t' must be imported from module 'std_cstdint' before it is required
  | # \|    25 \| TEST_CONSTEXPR_CXX23 __uint128_t make_u128(__uint128_t a, std::uint64_t b) {
  | # \|       \|                                                                ^
  | # \| /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-c4bpt-1/llvm-project/github-pull-requests/build-runtimes/libcxx/test-suite-install/include/c++/v1/cstdint:169:9: note: declaration here is not visible
  | # \|   169 \| using ::uint64_t _LIBCPP_USING_IF_EXISTS;
  | # \|       \|         ^
  | # \| 1 error generated.
  | # `-----------------------------
  | # error: command failed with exit status: 1
```

Seems strange.

https://github.com/llvm/llvm-project/pull/106817