vcl_hash() returns lookup now

While here fmt(1) the text.

doc/sphinx/users-guide/vcl-hashing.rst

 Hashing
 -------
 
-Internally, when Varnish stores content in the cache it stores the object together with a hash
-key to find the object again. In the default setup this key is
-calculated based on the content of the *Host* header or the IP address
-of the server and the URL.
+Internally, when Varnish stores content in the cache it stores the object
+together with a hash key to find the object again. In the default setup
+this key is calculated based on the content of the *Host* header or the
+IP address of the server and the URL.
 
 Behold the `default vcl`::
 
- sub vcl_hash {
-     hash_data(req.url);
-     if (req.http.host) {
-         hash_data(req.http.host);
-     } else {
-         hash_data(server.ip);
-     }
-     return (hash);
- }
-
-As you can see it first checks in `req.url` then `req.http.host` if it
-exists. It is worth pointing out that Varnish doesn't lowercase the
+    sub vcl_hash {
+        hash_data(req.url);
+        if (req.http.host) {
+            hash_data(req.http.host);
+        } else {
+            hash_data(server.ip);
+        }
+        return (lookup);
+    }
+
+As you can see it first checks in `req.url` then `req.http.host` if
+it exists. It is worth pointing out that Varnish doesn't lowercase the
 hostname or the URL before hashing it so in theory having "Varnish.org/"
 and "varnish.org/" would result in different cache entries. Browsers
 however, tend to lowercase hostnames.
@@ -29,22 +29,20 @@ serve up different content to different clients based on arbitrary
 criteria.
 
 Let's say you want to serve pages in different languages to your users
-based on where their IP address is located. You would need some Vmod
-to get a country code and then put it into the hash. It might look
-like this.
+based on where their IP address is located. You would need some Vmod to
+get a country code and then put it into the hash. It might look like this.
 
 In `vcl_recv`::
 
-  set req.http.X-Country-Code = geoip.lookup(client.ip);
+    set req.http.X-Country-Code = geoip.lookup(client.ip);
 
 And then add a `vcl_hash`::
 
- sub vcl_hash {
-   hash_data(req.http.X-Country-Code);
- }
+    sub vcl_hash {
+        hash_data(req.http.X-Country-Code);
+    }
 
-As the default VCL will take care of adding the host and URL to the
-hash we don't have to do anything else. Be careful calling
-``return(hash)`` as this will abort the execution of the default VCL and
-Varnish can end up returning data based on
-more or less random inputs.
+As the default VCL will take care of adding the host and URL to the hash
+we don't have to do anything else. Be careful calling ``return (lookup)``
+as this will abort the execution of the default VCL and Varnish can end
+up returning data based on more or less random inputs.