WHEEL_GID
error = setregid(WHEEL_GID, WHEEL_GID);
error = setresgid(WHEEL_GID, WHEEL_GID, WHEEL_GID);
error = setresgid(TEST_GID_ONE, TEST_GID_TWO, WHEEL_GID);
{"test1", ROOT_UID, WHEEL_GID, 0400},
{"test2", TEST_UID_ONE, WHEEL_GID,0400},
{"test3", TEST_UID_TWO, WHEEL_GID, 0400},
{"test4", ROOT_UID, WHEEL_GID, 0040},