[master] 4957292ff man: Use references to HEADER variables

[Dridi Boukelmoune]

commit 4957292ff900863b992e6f87a34a911a2cb30d3a
Author: Dridi Boukelmoune <dridi.boukelmoune at gmail.com>
Date:   Mon Jul 3 09:09:54 2023 +0200

    man: Use references to HEADER variables

diff --git a/doc/sphinx/reference/vcl_var.rst b/doc/sphinx/reference/vcl_var.rst
index c207867e4..b9b74f0e3 100644
--- a/doc/sphinx/reference/vcl_var.rst
+++ b/doc/sphinx/reference/vcl_var.rst
@@ -550,7 +550,7 @@ req_top.http.*
 	HTTP headers of the top-level request in a tree of ESI requests.
 	Identical to req.http. in non-ESI requests.
 
-	See ``req.http.*`` for general notes.
+	See req.http_ for general notes.
 
 
 .. _req_top.method:
@@ -670,7 +670,7 @@ bereq.body
 
 	The request body.
 
-	Unset will also remove ``bereq.http.Content-Length``.
+	Unset will also remove bereq.http.content-length_.
 
 .. _bereq.connect_timeout:
 
@@ -733,9 +733,11 @@ bereq.http.*
 
 	The headers to be sent to the backend.
 
-	See ``req.http.*`` for general notes.
+	See req.http_ for general notes.
 
 
+.. _bereq.http.content-length:
+
 bereq.http.content-length
 
 	Type: HEADER
@@ -1155,7 +1157,7 @@ beresp.http.*
 
 	The HTTP headers returned from the server.
 
-	See ``req.http.*`` for general notes.
+	See req.http_ for general notes.
 
 
 beresp.http.content-length
@@ -1422,7 +1424,7 @@ obj.http.*
 
 	The HTTP headers stored in the object.
 
-	See ``req.http.*`` for general notes.
+	See req.http_ for general notes.
 
 
 .. _obj.keep:
@@ -1605,7 +1607,7 @@ resp.http.*
 
 	The HTTP headers that will be returned.
 
-	See ``req.http.*`` for general notes.
+	See req.http_ for general notes.
 
 
 resp.http.content-length