[compiler-rt] [MemProf][NFC] Fix incorrect usage of InternalScopedString::appendF in Des… (PR #80574)

[via llvm-commits]

Enna1 wrote:

Just realized there are `InternalScopedString::AppendF` called with no format specifier provided in other sanitizers code besides memprof.
So change this PR replaces `InternalScopedString::AppendF` called with no format specifier provided with `InternalScopedString::Append` for all sanitizers.

https://github.com/llvm/llvm-project/pull/80574