[llvm] Use std::nullopt instead of None (NFC)

This patch mechanically replaces None with std::nullopt where the
compiler would warn if None were deprecated.  The intent is to reduce
the amount of manual work required in migrating from Optional to
std::optional.

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

1 files changed, 1 insertions, 1 deletions

diff --git a/llvm/lib/MC/ELFObjectWriter.cpp b/llvm/lib/MC/ELFObjectWriter.cpp
index 4cbe01c..fa0b2f3d 100644
--- a/llvm/lib/MC/ELFObjectWriter.cpp
+++ b/llvm/lib/MC/ELFObjectWriter.cpp
@@ -1056,7 +1056,7 @@ void ELFWriter::writeSectionHeader(
   // Null section first.
   uint64_t FirstSectionSize =
       (NumSections + 1) >= ELF::SHN_LORESERVE ? NumSections + 1 : 0;
-  WriteSecHdrEntry(0, 0, 0, 0, 0, FirstSectionSize, 0, 0, None, 0);
+  WriteSecHdrEntry(0, 0, 0, 0, 0, FirstSectionSize, 0, 0, std::nullopt, 0);
 
   for (const MCSectionELF *Section : SectionTable) {
     uint32_t GroupSymbolIndex;