'hiera_hash' is deprecated in favor of using 'lookup'

[jacobbednarz]

Debug: template[/Users/travis/build/boxen/our-boxen/shared/nodejs/templates/nodejs.sh]: Interpolated template /Users/travis/build/boxen/our-boxen/shared/nodejs/templates/nodejs.sh in 0.00 seconds
Warning: The function 'hiera_hash' is deprecated in favor of using 'lookup'. See https://docs.puppet.com/puppet/4.10/reference/deprecated_language.html
   (file & line not available)

See CI run at https://travis-ci.org/boxen/our-boxen/builds/349567566