HIVE-7919 : sql std auth: user with 'admin option' for role should be able to list all users in the role (Thejas Nair, reviewed by Jason Dere)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/branch-0.14@1631602 13f79535-47bb-0310-9956-ffa450edef68