Replace HTTP links with HTTPS ones: OMFS

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 <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Jonathan Corbet <[e-mail]>

Documentation/filesystems/omfs.rst

···
 Various utilities, including mkomfs and omfsck, are included with
 omfsprogs, available at:
 
-    http://bobcopeland.com/karma/
+    https://bobcopeland.com/karma/
 
 Instructions are included in its README.