Fix rbenv gem setup on very first chef run.
Fix rbenv gem setup on very first chef run.

NREL/api-umbrella,apinf/api-umbrella,Chuck8080/apiumbrella,apinf/api-umbrella,apinf/api-umbrella,NREL/api-umbrella,Chuck8080/apiumbrella,apinf/api-umbrella,NREL/api-umbrella,NREL/api-umbrella,apinf/api-umbrella