pkg/tracing: LogrusHook.Fire: micro-optimisation

Check span.IsRecording first, as it's a more lightweight check than
span.SpanContext().IsValid()

Signed-off-by: Sebastiaan van Stijn <[email protected]>

Author: thaJeztah

pkg/tracing/log.go

@@ -59,7 +59,7 @@ func (h *LogrusHook) Fire(entry *log.Entry) error {
 		return nil
 	}
 
-	if !span.SpanContext().IsValid() || !span.IsRecording() {
+	if !span.IsRecording() || !span.SpanContext().IsValid() {
 		return nil
 	}