Bug 619122 - fix coverify Defect Type: Resource leaks issues CID 11975 - 12053

https://bugzilla.redhat.com/show_bug.cgi?id=619122
Resolves: bug 619122
Bug description: fix coverify Defect Type: Resource leaks issues CID 12005.
description: The dna_get_replica_bind_creds() has been modified to release transport before it returns.

ldap/servers/plugins/dna/dna.c

@@ -2506,6 +2506,7 @@ static int dna_get_replica_bind_creds(char *range_dn, struct dnaServer *server,
     }
 
 bail:
+    slapi_ch_free_string(&transport);
     slapi_ch_free_string(&filter);
     slapi_sdn_free(&range_sdn);
     slapi_ch_free_string(&replica_dn);