ITS#4510 update.

Update wording in slapd.conf.5 to match admin guide

doc/guide/admin/slapdconf2.sdf

@@ -609,6 +609,7 @@ H4: olcSyncrepl
 
 >	olcSyncrepl: rid=<replica ID>
 >		provider=ldap[s]://<hostname>[:port]
+>		[starttls=yes|critical]
 >		[type=refreshOnly|refreshAndPersist]
 >		[interval=dd:hh:mm:ss]
 >		[retry=[<retry interval> <# of retries>]+]
@@ -658,6 +659,12 @@ specification is located at the provider site. {{EX:syncrepl}} and
 {{EX:replica}} directives define two independent replication
 mechanisms. They do not represent the replication peers of each other.
 
+The {{EX:starttls}} parameter specifies use of the StartTLS extended
+operation to establish a TLS session before Binding to the provider. If the
+StartTLS request fails and the {{EX:critical}} argument was used, the
+session will be aborted. Otherwise the syncrepl session continues without
+TLS.
+
 The content of the syncrepl replica is defined using a search
 specification as its result set. The consumer slapd will
 send search requests to the provider slapd according to the search

doc/man/man5/slapd.conf.5

@@ -1596,9 +1596,10 @@ The
 .B starttls
 parameter specifies use of the StartTLS extended operation
 to establish a TLS session before Binding to the provider. If the
+StartTLS request fails and the
 .B critical
-argument is supplied, the session will be aborted if the StartTLS request
-fails. Otherwise the syncrepl session continues without TLS.
+argument was used, the session will be aborted. Otherwise the syncrepl
+session continues without TLS.
 A
 .B bindmethod
 of