USB: storage: 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/20200708184903.17350-1-grandmaster@al2klimov.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/storage/unusual_devs.h

@@ -44,7 +44,7 @@
  * mode.  Existing userspace solutions are superior.
  *
  * New mode switching devices should instead be added to the database
- * maintained at http://www.draisberghof.de/usb_modeswitch/
+ * maintained at https://www.draisberghof.de/usb_modeswitch/
  */
 
 #if !defined(CONFIG_USB_STORAGE_SDDR09) && \