[PATCH] D54840: [GN][NFC] Update readme example to functional command

[Nico Weber via Phabricator via llvm-commits]

thakis added a comment.

If you still want to land this, maybe use `llvm-undname` since that's a useful binary that now works.


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D54840/new/

https://reviews.llvm.org/D54840