Ticket #48834 - Modifier's name is not recorded in the audit log with modrdn and moddn operations
Description: Audit log had no support on modifier's name and newsuperior,
which is now appended to the log:
time: 20160518144610
dn: uid=tuser1,ou=People,dc=example,dc=com
result: 0
changetype: modrdn
newrdn: uid=tuser10
deleteoldrdn: 1
newsuperior: ou=OU0,ou=People,dc=example,dc=com
modifiersname: cn=directory manager
https://fedorahosted.org/389/ticket/48834
Reviewed by mreynolds@redhat.com (Thank you, Mark!!)