builtin: Minor polish

Only copy the host header if needed
parent 3efdc84b
...@@ -44,7 +44,7 @@ sub vcl_recv { ...@@ -44,7 +44,7 @@ sub vcl_recv {
} }
sub vcl_req_host { sub vcl_req_host {
if (req.http.host) { if (req.http.host ~ "[[:upper:]]") {
set req.http.host = req.http.host.lower(); set req.http.host = req.http.host.lower();
} }
if (!req.http.host && if (!req.http.host &&
......
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