Document the releng/12.0 branch has officially been handed over to

so@.

Approved by:	re (implicit)
Sponsored by:	The FreeBSD Foundation

en_US.ISO8859-1/htdocs/releases/12.0R/schedule.xml

@@ -204,7 +204,7 @@
       <tr>
 	<td>Turn over to the secteam</td>
 	<td>-</td>
-	<td>-</td>
+	<td>27&nbsp;December&nbsp;2018</td>
 	<td>&local.branch.releng; branch is handed over to the
 	  &os;&nbsp;Security Officer Team in one or two weeks after
 	  the announcement.</td>

en_US.ISO8859-1/htdocs/releng/index.xml

@@ -99,7 +99,7 @@
     <tr>
       <td><tt>releng/12.0</tt></td>
       <td>Frozen</td>
-      <td>&contact.re;</td>
+      <td>&contact.so;</td>
       <td>FreeBSD 12.0 supported errata fix branch.</td>
     </tr>