Bug 697027 - 13 - minor memory leaks found by Valgrind + TET
https://bugzilla.redhat.com/show_bug.cgi?id=697027
[Case 13]
Description: When the log level is set to LDAP_DEBUG_CONNS,
connection_table_dump_activity_to_errors_log could have
accessed the negative-th element of array ct->fd.