fix(simapp): do not repeat errors (backport #16865) (#16872)

Co-authored-by: Julien Robert <julien@rbrt.fr>

simapp/simd/cmd/root.go

@@ -65,8 +65,9 @@ func NewRootCmd() *cobra.Command {
 		WithViper("") // In simapp, we don't use any prefix for env variables.
 
 	rootCmd := &cobra.Command{
-		Use:   "simd",
-		Short: "simulation app",
+		Use:           "simd",
+		Short:         "simulation app",
+		SilenceErrors: true,
 		PersistentPreRunE: func(cmd *cobra.Command, _ []string) error {
 			// set the default command outputs
 			cmd.SetOut(cmd.OutOrStdout())

simapp/simd/cmd/root_v2.go

@@ -76,8 +76,9 @@ func NewRootCmd() *cobra.Command {
 		WithViper("") // In simapp, we don't use any prefix for env variables.
 
 	rootCmd := &cobra.Command{
-		Use:   "simd",
-		Short: "simulation app",
+		Use:           "simd",
+		Short:         "simulation app",
+		SilenceErrors: true,
 		PersistentPreRunE: func(cmd *cobra.Command, _ []string) error {
 			// set the default command outputs
 			cmd.SetOut(cmd.OutOrStdout())

simapp/simd/main.go

@@ -1,9 +1,9 @@
 package main
 
 import (
+	"fmt"
 	"os"
 
-	"cosmossdk.io/log"
 	"cosmossdk.io/simapp"
 	"cosmossdk.io/simapp/simd/cmd"
 
@@ -13,7 +13,7 @@ import (
 func main() {
 	rootCmd := cmd.NewRootCmd()
 	if err := svrcmd.Execute(rootCmd, "", simapp.DefaultNodeHome); err != nil {
-		log.NewLogger(rootCmd.OutOrStderr()).Error("failure when running app", "err", err)
+		fmt.Fprintln(rootCmd.OutOrStderr(), err)
 		os.Exit(1)
 	}
 }