Ticket 47597 - Convert retro changelog plug-in to betxn

Retro cl plugin is already betxn aware.  The template and 20betxn.pl script
needed to be updated to reflect the new default.

https://fedorahosted.org/389/ticket/47597

Reviewed by: richm(Thanks!)

ldap/admin/src/scripts/20betxn.pl

@@ -12,10 +12,12 @@ sub runinst {
     #     cn=Multimaster Replication Plugin
     #     cn=Roles Plugin,cn=plugins,cn=config
     #     cn=USN,cn=plugins,cn=config
+    #     cn=Retro Changelog Plugin,cn=plugins,cn=config
     my @objplugins = (
         "cn=Multimaster Replication Plugin,cn=plugins,cn=config",
         "cn=Roles Plugin,cn=plugins,cn=config",
-        "cn=USN,cn=plugins,cn=config"
+        "cn=USN,cn=plugins,cn=config",
+        "cn=Retro Changelog Plugin,cn=plugins,cn=config"
     );
     foreach my $plugin (@objplugins) {
         my $ent = $conn->search($plugin, "base", "(cn=*)");

ldap/ldif/template-dse.ldif.in

@@ -565,6 +565,7 @@ cn: Retro Changelog Plugin
 nsslapd-pluginpath: libretrocl-plugin
 nsslapd-plugininitfunc: retrocl_plugin_init
 nsslapd-plugintype: object
+nsslapd-pluginbetxn: on
 nsslapd-pluginenabled: off
 nsslapd-pluginprecedence: 25
 nsslapd-plugin-depends-on-type: database