[libc] Use std::optional instead of None in comments (NFC)
authorKazu Hirata <kazu@google.com>
Sun, 11 Dec 2022 01:01:55 +0000 (17:01 -0800)
committerKazu Hirata <kazu@google.com>
Sun, 11 Dec 2022 01:01:55 +0000 (17:01 -0800)
commitb950e061490992061fdbbd58f988eaa6f443f869
treeafa272374b9ddfdb5a5df4b946ab9d7689c7c0aa
parentc15a925ada41d80203735b8828f045215910aca4
[libc] Use std::optional instead of None in comments (NFC)

This is part of an effort to migrate from llvm::Optional to
std::optional:

https://discourse.llvm.org/t/deprecating-llvm-optional-x-hasvalue-getvalue-getvalueor/63716
libc/benchmarks/automemcpy/lib/RandomFunctionGenerator.cpp