From 66b3270975ebf33596559d70549ea66d1dfd9d9c Mon Sep 17 00:00:00 2001
From: Victor Stinner <victor.stinner@gmail.com>
Date: Thu, 7 Nov 2013 23:12:23 +0100
Subject: _Py_normalize_encoding(): explain how the value 6 was computed

---
 Objects/unicodeobject.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index 1375ef3..224a80b 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -2983,6 +2983,7 @@ _Py_normalize_encoding(const char *encoding,
     char *l_end;
 
     if (encoding == NULL) {
+        /* 6 == strlen("utf-8") + 1 */
         if (lower_len < 6)
             return 0;
         strcpy(lower, "utf-8");
-- 
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