Update link to "Why not LGPL".

	* doc/xml/gnu/gpl-3.0.xml: Adjust link to "Why not LGPL".

From-SVN: r278051

libstdc++-v3/ChangeLog

-2019-11-10  Gerald Pfeifer  <gerald@pfeifer.com>
+2019-11-11  Gerald Pfeifer  <gerald@pfeifer.com>
+
+	* doc/xml/gnu/gpl-3.0.xml: Adjust link to "Why not LGPL".
 
+2019-11-10  Gerald Pfeifer  <gerald@pfeifer.com>
+	
 	* doc/xml/manual/using.xml: Switch www.hboehm.info to https.
 
 2019-11-07  Jonathan Wakely  <jwakely@redhat.com>

libstdc++-v3/doc/xml/gnu/gpl-3.0.xml

@@ -829,6 +829,6 @@ under certain conditions; type ‘<literal>show c</literal>’ for details.
     subroutine library, you may consider it more useful to permit linking
     proprietary applications with the library.  If this is what you want to do,
     use the <acronym>GNU</acronym> Lesser General Public License instead of this
-    License.  But first, please read <link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="https://www.gnu.org/philosophy/why-not-lgpl.html">https://www.gnu.org/philosophy/why-not-lgpl.html</link>.
+    License.  But first, please read <link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="https://www.gnu.org/licenses/why-not-lgpl.html">https://www.gnu.org/licenses/why-not-lgpl.html</link>.
   </para>
 </appendix>