[llvm] r242839 - [Object][ELF] Handle files with no section header string table.

[Rafael Espíndola]

> +  uintX_t StringTableIndex = getStringTableIndex();
> +  if (StringTableIndex) {
> +    ErrorOr<const Elf_Shdr *> StrTabSecOrErr =
> +        getSection(getStringTableIndex());

Please reused StringTableIndex.

Cheers,
Rafael