[PATCH] Replace HTTP links with HTTPS ones: kdump

["Alexander A. Klimov" <grandmaster@al2klimov.de>]

Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
          If both the HTTP and HTTPS versions
          return 200 OK and serve the same content:
            Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
---
 If there are any URLs to be removed completely or at least not HTTPSified:
 Just clearly say so and I'll *undo my change*.
 See also https://lkml.org/lkml/2020/6/27/64

 If there are any valid, but yet not changed URLs:
 See https://lkml.org/lkml/2020/6/26/837

 Documentation/admin-guide/kdump/kdump.rst | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/Documentation/admin-guide/kdump/kdump.rst b/Documentation/admin-guide/kdump/kdump.rst
index 2da65fef2a1c..8cfa35f777f5 100644
--- a/Documentation/admin-guide/kdump/kdump.rst
+++ b/Documentation/admin-guide/kdump/kdump.rst
@@ -65,20 +65,20 @@ Install kexec-tools
 
 2) Download the kexec-tools user-space package from the following URL:
 
-http://kernel.org/pub/linux/utils/kernel/kexec/kexec-tools.tar.gz
+https://kernel.org/pub/linux/utils/kernel/kexec/kexec-tools.tar.gz
 
 This is a symlink to the latest version.
 
 The latest kexec-tools git tree is available at:
 
 - git://git.kernel.org/pub/scm/utils/kernel/kexec/kexec-tools.git
-- http://www.kernel.org/pub/scm/utils/kernel/kexec/kexec-tools.git
+- https://www.kernel.org/pub/scm/utils/kernel/kexec/kexec-tools.git
 
 There is also a gitweb interface available at
-http://www.kernel.org/git/?p=utils/kernel/kexec/kexec-tools.git
+https://www.kernel.org/git/?p=utils/kernel/kexec/kexec-tools.git
 
 More information about kexec-tools can be found at
-http://horms.net/projects/kexec/
+https://horms.net/projects/kexec/
 
 3) Unpack the tarball with the tar command, as follows::
 
@@ -511,7 +511,7 @@ dump kernel.
 You can also use the Crash utility to analyze dump files in Kdump
 format. Crash is available on Dave Anderson's site at the following URL:
 
-   http://people.redhat.com/~anderson/
+   https://people.redhat.com/~anderson/
 
 Trigger Kdump on WARN()
 =======================
-- 
2.27.0