This fixes https://github.com/Aethylred/puppet-keymaster/issues/7,
Error: Could not retrieve catalog from remote server: Error 500 on SERVER: Server Error: Keymaster::Openssh::Key::Deploy[testuser]: expects a value for parameter 'user' on node server.example.com.
This fixes https://github.com/Aethylred/puppet-keymaster/issues/7, Error: Could not retrieve catalog from remote server: Error 500 on SERVER: Server Error: Keymaster::Openssh::Key::Deploy[testuser]: expects a value for parameter 'user' on node server.example.com.