Replace HTTP links with HTTPS ones: DISKQUOTA

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.

Link: https://lore.kernel.org/r/20200708171905.15396-1-grandmaster@al2klimov.deSigned-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Signed-off-by: Jan Kara <jack@suse.cz>

Documentation/filesystems/quota.rst

@@ -31,7 +31,7 @@ the above events to userspace. There they can be captured by an application
 and processed accordingly.
 
 The interface uses generic netlink framework (see
-http://lwn.net/Articles/208755/ and http://people.suug.ch/~tgr/libnl/ for more
+https://lwn.net/Articles/208755/ and http://people.suug.ch/~tgr/libnl/ for more
 details about this layer). The name of the quota generic netlink interface
 is "VFS_DQUOT". Definitions of constants below are in <linux/quota.h>.
 Since the quota netlink protocol is not namespace aware, quota netlink messages

fs/quota/Kconfig

@@ -15,7 +15,7 @@ config QUOTA
 	  Ext3, ext4 and reiserfs also support journaled quotas for which
 	  you don't need to run quotacheck(8) after an unclean shutdown.
 	  For further details, read the Quota mini-HOWTO, available from
-	  <http://www.tldp.org/docs.html#howto>, or the documentation provided
+	  <https://www.tldp.org/docs.html#howto>, or the documentation provided
 	  with the quota tools. Probably the quota support is only useful for
 	  multi user systems. If unsure, say N.