char: Replace HTTP links with HTTPS ones

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 neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
            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>
Link: https://lore.kernel.org/r/20200713104453.33414-1-grandmaster@al2klimov.deSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/char/Kconfig

@@ -38,7 +38,7 @@ config PRINTER
 	  box (as opposed to using a serial printer; if the connector at the
 	  printer has 9 or 25 holes ["female"], then it's serial), say Y.
 	  Also read the Printing-HOWTO, available from
-	  <http://www.tldp.org/docs.html#howto>.
+	  <https://www.tldp.org/docs.html#howto>.
 
 	  It is possible to share one parallel port among several devices
 	  (e.g. printer and ZIP drive) and it is safe to compile the
@@ -201,7 +201,7 @@ config DTLK
 	depends on ISA
 	help
 	  This driver is for the DoubleTalk PC, a speech synthesizer
-	  manufactured by RC Systems (<http://www.rcsys.com/>).  It is also
+	  manufactured by RC Systems (<https://www.rcsys.com/>).  It is also
 	  called the `internal DoubleTalk'.
 
 	  To compile this driver as a module, choose M here: the
@@ -237,7 +237,7 @@ config APPLICOM
 	  This driver provides the kernel-side support for the intelligent
 	  fieldbus cards made by Applicom International. More information
 	  about these cards can be found on the WWW at the address
-	  <http://www.applicom-int.com/>, or by email from David Woodhouse
+	  <https://www.applicom-int.com/>, or by email from David Woodhouse
 	  <dwmw2@infradead.org>.
 
 	  To compile this driver as a module, choose M here: the

drivers/misc/echo/echo.c

@@ -66,13 +66,13 @@
        Path Models", IEEE Transactions on communications, COM-25,
        No. 6, June
        1977.
-       http://www.rowetel.com/images/echo/dual_path_paper.pdf
+       https://www.rowetel.com/images/echo/dual_path_paper.pdf
 
    [2] The classic, very useful paper that tells you how to
        actually build a real world echo canceller:
 	 Messerschmitt, Hedberg, Cole, Haoui, Winship, "Digital Voice
 	 Echo Canceller with a TMS320020,
-	 http://www.rowetel.com/images/echo/spra129.pdf
+	 https://www.rowetel.com/images/echo/spra129.pdf
 
    [3] I have written a series of blog posts on this work, here is
        Part 1: http://www.rowetel.com/blog/?p=18
@@ -80,7 +80,7 @@
    [4] The source code http://svn.rowetel.com/software/oslec/
 
    [5] A nice reference on LMS filters:
-	 http://en.wikipedia.org/wiki/Least_mean_squares_filter
+	 https://en.wikipedia.org/wiki/Least_mean_squares_filter
 
    Credits:
 

drivers/misc/sram-exec.c

 /*
  * SRAM protect-exec region helper functions
  *
- * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/
+ * Copyright (C) 2017 Texas Instruments Incorporated - https://www.ti.com/
  *	Dave Gerlach
  *
  * This program is free software; you can redistribute it and/or modify