From 6dd64bb62bfde43809b2a40dad663d0fe6597092 Mon Sep 17 00:00:00 2001
From: mlibbey <mlibbey@apache.org>
Date: Thu, 29 Apr 2021 15:45:15 -0700
Subject: [PATCH] doc: header_rewrite random function not inclusive (#7760)

In testing %{RANDOM:3}, ATS only prints 0,1, and 2. The code
rand_r(&_seed) % _max)
implies that the n value would not be chosen.

(cherry picked from commit 22cd7dafeddd5bec8b1623e9c135bb54f4160ee0)
---
 doc/admin-guide/plugins/header_rewrite.en.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/doc/admin-guide/plugins/header_rewrite.en.rst b/doc/admin-guide/plugins/header_rewrite.en.rst
index 12f9b4acc25..7efcbbb65ac 100644
--- a/doc/admin-guide/plugins/header_rewrite.en.rst
+++ b/doc/admin-guide/plugins/header_rewrite.en.rst
@@ -470,7 +470,7 @@ RANDOM
 
     cond %{RANDOM:<n>} <operand>
 
-Generates a random integer between ``0`` and ``<n>``, inclusive.
+Generates a random integer from ``0`` up to (but not including) ``<n>``. Mathmatically, ``[0,n)`` or ``0 <= r < n``.
 
 STATUS
 ~~~~~~