doc: switch links to https

These sites offer https versions of their content.
Using the https versions provides some protection for users.

Signed-off-by: Josh Soref <jsoref@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/utf8.c b/utf8.c
index 6a0dd25b0f..6bfaefa28e 100644
--- a/utf8.c
+++ b/utf8.c
@@ -2,7 +2,7 @@
 #include "strbuf.h"
 #include "utf8.h"
 
-/* This code is originally from http://www.cl.cam.ac.uk/~mgk25/ucs/ */
+/* This code is originally from https://www.cl.cam.ac.uk/~mgk25/ucs/ */
 
 static const char utf16_be_bom[] = {'\xFE', '\xFF'};
 static const char utf16_le_bom[] = {'\xFF', '\xFE'};