policy_data_structures_biblio.xml: Switch pubs.opengroup.org to https.

	* doc/xml/manual/policy_data_structures_biblio.xml: Switch
	pubs.opengroup.org to https.

From-SVN: r277436

libstdc++-v3/ChangeLog

 2019-10-25  Gerald Pfeifer  <gerald@pfeifer.com>
 
+	* doc/xml/manual/policy_data_structures_biblio.xml: Switch
+	pubs.opengroup.org to https.
+
+2019-10-25  Gerald Pfeifer  <gerald@pfeifer.com>
+	
 	* doc/xml/gnu/gpl-3.0.xml: Switch www.gnu.org to https.
 
 2019-09-09  Edward Smith-Rowland  <3dw4rd@verizon.net>

libstdc++-v3/doc/xml/manual/policy_data_structures_biblio.xml

@@ -1232,7 +1232,7 @@
     <biblioentry xml:id="biblio.select_man">
       <title>
 	<link xmlns:xlink="http://www.w3.org/1999/xlink"
-	      xlink:href="http://pubs.opengroup.org/onlinepubs/9699919799/functions/select.html">
+	      xlink:href="https://pubs.opengroup.org/onlinepubs/9699919799/functions/select.html">
 	  select
 	</link>
       </title>