[master] b083216c4 Fix documentation error.

[Poul-Henning Kamp]

commit b083216c485597e8873a85bc4b7d857212a73039
Author: Poul-Henning Kamp <phk at FreeBSD.org>
Date:   Tue Jun 25 05:18:28 2024 +0000

    Fix documentation error.
    
    Spotted by: swojcik at irc

diff --git a/doc/sphinx/reference/vcl-backend.rst b/doc/sphinx/reference/vcl-backend.rst
index 97bb681c3..de174fb79 100644
--- a/doc/sphinx/reference/vcl-backend.rst
+++ b/doc/sphinx/reference/vcl-backend.rst
@@ -93,7 +93,7 @@ Attribute ``.host_header``
 
 A host header to add to probes and regular backend requests if they have no such header::
 
-    .host_header = "Host: example.com";
+    .host_header = "example.com";
 
 Timeout Attributes
 ------------------