Set DoH user agent to empty string for privacy

PeterDaveHello · ignoramous · commit 4aaa204243b8 · 2022-02-04T21:45:54.000+05:30
diff --git a/intra/doh/doh.go b/intra/doh/doh.go
@@ -354,7 +354,7 @@ func (t *transport) sendRequest(id uint16, q []byte) (response []byte, hostname
 	const mimetype = "application/dns-message"
 	req.Header.Set("Content-Type", mimetype)
 	req.Header.Set("Accept", mimetype)
-	req.Header.Set("User-Agent", "Intra")
+	req.Header.Set("User-Agent", "")
 
 	log.Debugf("%d Sending query", id)
 	httpResponse, err := t.client.Do(req)
