Make use of time.Since

Use time.Since instead of manually subtracting timestamps.

cmd/trustydns-server/main.go

@@ -308,7 +308,7 @@ func nextInterval(now time.Time, interval time.Duration) time.Duration {
 // upTime calculates how long this server has been running and returns log-friendly and
 // granularity-appropriate representation of that duration.
 func uptime() string {
-	return time.Now().Sub(startTime).Truncate(time.Second).String()
+	return time.Since(startTime).Truncate(time.Second).String()
 }
 
 // statusReport prints stats about the server and all known reporters

cmd/trustydns-server/server.go

@@ -278,7 +278,7 @@ func (t *server) serveDoH(writer http.ResponseWriter, httpReq *http.Request) {
 
 	// Return message to caller
 
-	duration := time.Now().Sub(startTime)
+	duration := time.Since(startTime)
 	writer.Header().Set(consts.ContentTypeHeader, consts.Rfc8484AcceptValue)
 	writer.Header().Set(consts.TrustyDurationHeader, duration.String())