[libunwind] Clarify comment added in #67205

See https://github.com/llvm/llvm-project/pull/67205#issuecomment-1734443684

GitOrigin-RevId: f9583815e7e9bd5d57ef27232e6cbbc426e03824
3 files changed
tree: ec208ef25b1785a2cf8f7fc1437b29d8545e8fa5
  1. cmake/
  2. docs/
  3. include/
  4. src/
  5. test/
  6. .clang-format
  7. CMakeLists.txt
  8. LICENSE.TXT