allocator.xml: Adjust link to "Reconsidering Custom Memory Allocation".

	* doc/xml/manual/allocator.xml: Adjust link to "Reconsidering
	Custom Memory Allocation".

From-SVN: r264761

libstdc++-v3/ChangeLog

+2018-10-01  Gerald Pfeifer  <gerald@pfeifer.com>
+
+	* doc/xml/manual/allocator.xml: Adjust link to "Reconsidering
+	Custom Memory Allocation".
+
 2018-10-01  Jonathan Wakely  <jwakely@redhat.com>
 
 	* doc/html/*: Regenerate.

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

@@ -531,7 +531,7 @@
   <biblioentry>
       <title>
 	<link xmlns:xlink="http://www.w3.org/1999/xlink"
-	      xlink:href="http://people.cs.umass.edu/~emery/pubs/berger-oopsla2002.pdf">
+	      xlink:href="https://people.cs.umass.edu/~emery/pubs/berger-oopsla2002.pdf">
       Reconsidering Custom Memory Allocation
 	</link>
       </title>