fix: env binding in oneshot and less output from dummy

cmd/experiment/dummy/dummy.go

@@ -7,11 +7,10 @@ import (
 )
 
 func main() {
-	for i := 0; i < 10; i++ {
-		log.Println("using log.Println")
-		fmt.Println("using fmt.Println")
-		time.Sleep(time.Millisecond * 500)
-	}
+	log.Println("using log.Println")
+	fmt.Println("using fmt.Println")
+
+	time.Sleep(time.Second * 5)
 
 	log.Println("log: finishing up")
 	fmt.Println("fmt: finishing up")

cmd/experiment/oneshot/oneshot.go

@@ -22,7 +22,9 @@ const (
 
 func main() {
 	viper.SetEnvPrefix(EnvPrefix)
-	viper.BindEnv(EnvDummyPath, EnvLog, EnvLogMessage)
+	viper.BindEnv(EnvDummyPath)
+	viper.BindEnv(EnvLog)
+	viper.BindEnv(EnvLogMessage)
 	viper.SetDefault(EnvDummyPath, DummyPath)
 	viper.SetDefault(EnvLogMessage, EnvDefaultLogMessage)
 
@@ -30,6 +32,7 @@ func main() {
 
 	logPath := viper.GetString(EnvLog)
 	logMessage := viper.GetString(EnvLogMessage)
+	log.Println("log path:", logPath)
 	if logPath != "" {
 		var (
 			err  error