Use pg_ctl for initdb
Use pg_ctl for initdb

Change-Id: I5b889532e3c335ed27d5b5c2ee8a2bbc2ec91722

gnocchixyz/gnocchi,leandroreox/gnocchi,leandroreox/gnocchi,gnocchixyz/gnocchi,sileht/gnocchi,sileht/gnocchi