backwards_compatibility.xml: Adjust lists.debian.org link to https.

	* doc/xml/manual/backwards_compatibility.xml: Adjust
	lists.debian.org link to https.
	* doc/html/manual/backwards.html: Regenerate.

From-SVN: r236858

libstdc++-v3/ChangeLog

+2016-05-29  Gerald Pfeifer  <gerald@pfeifer.com>
+
+	* doc/xml/manual/backwards_compatibility.xml: Adjust
+	lists.debian.org link to https.
+	* doc/html/manual/backwards.html: Regenerate.
+
 2016-05-27  Jonathan Wakely  <jwakely@redhat.com>
 
 	* doc/xml/manual/abi.xml: Adjust URL to use https.

libstdc++-v3/doc/html/manual/backwards.html

@@ -952,7 +952,7 @@ AC_DEFUN([AC_HEADER_UNORDERED_SET], [
       Migrating to GCC 4.1
 	</a>
       </em>. </span><span class="author"><span class="firstname">Dan</span> <span class="surname">Kegel</span>. </span></p></div><div class="biblioentry"><a id="id-1.3.6.3.8.5.3"></a><p><span class="title"><em>
-	<a class="link" href="http://lists.debian.org/debian-gcc/2006/03/msg00405.html" target="_top">
+	<a class="link" href="https://lists.debian.org/debian-gcc/2006/03/msg00405.html" target="_top">
       Building the Whole Debian Archive with GCC 4.1: A Summary
 	</a>
       </em>. </span><span class="author"><span class="firstname">Martin</span> <span class="surname">Michlmayr</span>. </span></p></div><div class="biblioentry"><a id="id-1.3.6.3.8.5.4"></a><p><span class="title"><em>

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

@@ -1304,7 +1304,7 @@ AC_DEFUN([AC_HEADER_UNORDERED_SET], [
   <biblioentry>
       <title>
 	<link xmlns:xlink="http://www.w3.org/1999/xlink"
-	      xlink:href="http://lists.debian.org/debian-gcc/2006/03/msg00405.html">
+	      xlink:href="https://lists.debian.org/debian-gcc/2006/03/msg00405.html">
       Building the Whole Debian Archive with GCC 4.1: A Summary
 	</link>
       </title>