[7.4] 07c34090c man: Fix the scope of resp protected headers

[Dridi Boukelmoune]

commit 07c34090c01eb7129ec92f4f37ff5e6eb8a77511
Author: Dridi Boukelmoune <dridi.boukelmoune at gmail.com>
Date:   Tue Sep 19 12:03:12 2023 +0200

    man: Fix the scope of resp protected headers
    
    Refs #3984

diff --git a/doc/sphinx/reference/vcl_var.rst b/doc/sphinx/reference/vcl_var.rst
index faed3aaa9..5d320537f 100644
--- a/doc/sphinx/reference/vcl_var.rst
+++ b/doc/sphinx/reference/vcl_var.rst
@@ -1614,7 +1614,7 @@ resp.http.content-length
 
 	Type: HEADER
 
-	Readable from: client
+	Readable from: vcl_deliver, vcl_synth
 
 	The content-length header field is protected, see protected_headers_.
 
@@ -1623,7 +1623,7 @@ resp.http.transfer-encoding
 
 	Type: HEADER
 
-	Readable from: client
+	Readable from: vcl_deliver, vcl_synth
 
 	The transfer-encoding header field is protected, see protected_headers_.