is_pbx hiera lookup fails so I set the default to false

Got this error and didn't want to have to find a place to stash is_pbx in hiera so I set the default to false in the lookup:

err: Could not retrieve catalog from remote server: Error 400 on SERVER: Could not find data item is_pbx in any Hiera data file and no default supplied at /etc/puppet/modules/sudo/manifests/params.pp:9 on node node1