cmd/earlyinit: improve change message formatting

This is significantly more readable.

Signed-off-by: Ophestra <cat@gensokyo.uk>

cmd/earlyinit/main.go

@@ -201,7 +201,12 @@ func main() {
 
 	go consume(ctx, msg, &r, conn, uuid, events)
 	s := kobject.New(uuid, func(o *kobject.Object, env map[string]string) {
-		log.Printf("change %s: %q", o.DevPath, env)
+		p := make([]string, 0, len(env))
+		for k, v := range env {
+			p = append(p, k+"="+v)
+		}
+		slices.Sort(p)
+		log.Printf("change %s: %s", o.DevPath, strings.Join(p, ", "))
 	}, func(err error) {
 		severity := report.Inconsistent
 		if e, ok := err.(kobject.EventError); ok && e.Kind == kobject.EBadTarget {