[gcc r17-4684] libstdc++: Switch Safe STL link to https

[Gerald Pfeifer]

https://gcc.gnu.org/g:5e9ef3a4160416519a4cb82cc428fe36781c5afc

commit r17-4684-g5e9ef3a4160416519a4cb82cc428fe36781c5afc
Author: Gerald Pfeifer <gerald@pfeifer.com>
Date:   Sun Sep 27 11:10:01 2026 +0200

    libstdc++: Switch Safe STL link to https
    
    libstdc++-v3:
            * doc/xml/manual/debug_mode.xml: Switch Safe STL link to https.
            * doc/html/manual/debug_mode_design.html: Regenerate.

Diff:
---
 libstdc++-v3/doc/html/manual/debug_mode_design.html | 2 +-
 libstdc++-v3/doc/xml/manual/debug_mode.xml          | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/libstdc++-v3/doc/html/manual/debug_mode_design.html b/libstdc++-v3/doc/html/manual/debug_mode_design.html
index 6618aba1936e..65326c965af3 100644
--- a/libstdc++-v3/doc/html/manual/debug_mode_design.html
+++ b/libstdc++-v3/doc/html/manual/debug_mode_design.html
@@ -385,7 +385,7 @@ test02()
     </p><p> There are several existing implementations of debug modes for C++
   standard library implementations, although none of them directly
   supports debugging for programs using libstdc++. The existing
-  implementations include:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p><a class="link" href="http://www.cs.sjsu.edu/faculty/horstman/safestl.html" target="_top">SafeSTL</a>:
+  implementations include:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p><a class="link" href="https://www.cs.sjsu.edu/faculty/horstman/safestl.html" target="_top">SafeSTL</a>:
   SafeSTL was the original debugging version of the Standard Template
   Library (STL), implemented by Cay S. Horstmann on top of the
   Hewlett-Packard STL. Though it inspired much work in this area, it
diff --git a/libstdc++-v3/doc/xml/manual/debug_mode.xml b/libstdc++-v3/doc/xml/manual/debug_mode.xml
index 6f79602ff702..5317f806a291 100644
--- a/libstdc++-v3/doc/xml/manual/debug_mode.xml
+++ b/libstdc++-v3/doc/xml/manual/debug_mode.xml
@@ -876,7 +876,7 @@ test02()
   supports debugging for programs using libstdc++. The existing
   implementations include:</para>
 <itemizedlist>
-  <listitem><para><link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://www.cs.sjsu.edu/faculty/horstman/safestl.html">SafeSTL</link>:
+  <listitem><para><link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="https://www.cs.sjsu.edu/faculty/horstman/safestl.html">SafeSTL</link>:
   SafeSTL was the original debugging version of the Standard Template
   Library (STL), implemented by Cay S. Horstmann on top of the
   Hewlett-Packard STL. Though it inspired much work in this area, it