/usr/share/doc/node-nan/examples/async_pi_estimate/ is in node-nan 2.9.2-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/node-nan/examples/async_pi_estimate/README.md
/usr/share/doc/node-nan/examples/async_pi_estimate/addon.cc
/usr/share/doc/node-nan/examples/async_pi_estimate/addon.js
/usr/share/doc/node-nan/examples/async_pi_estimate/async.cc
/usr/share/doc/node-nan/examples/async_pi_estimate/async.h
/usr/share/doc/node-nan/examples/async_pi_estimate/binding.gyp
/usr/share/doc/node-nan/examples/async_pi_estimate/package.json
/usr/share/doc/node-nan/examples/async_pi_estimate/pi_est.cc
/usr/share/doc/node-nan/examples/async_pi_estimate/pi_est.h
/usr/share/doc/node-nan/examples/async_pi_estimate/sync.cc
/usr/share/doc/node-nan/examples/async_pi_estimate/sync.h