Ticket 47931 - Fix coverity issues
Description: Fix coverity issues in memberof_config.c
13316 - double free
13315 - Dereference after null check
13314 - Dereference after null check
13313 - copy/paste error
https://fedorahosted.org/389/ticket/47931
Reviewed by: rmeggins(Thanks!)
(cherry picked from commit 5daea973e4526584ee41d7b9f4b1b4993b4de6f1)