From 9da128db704d6ae11ec853bf38d6a4e7ac412fdb Mon Sep 17 00:00:00 2001
From: Chen Quan <terasum@163.com>
Date: Tue, 3 Jul 2018 20:14:57 +0800
Subject: [PATCH] cmd/p2psim: add exit error output and exit code (#17116)

---
 cmd/p2psim/main.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/cmd/p2psim/main.go b/cmd/p2psim/main.go
index d32c298631..6604b671fc 100644
--- a/cmd/p2psim/main.go
+++ b/cmd/p2psim/main.go
@@ -180,7 +180,10 @@ func main() {
 			},
 		},
 	}
-	app.Run(os.Args)
+	if err := app.Run(os.Args); err != nil {
+		fmt.Fprintln(os.Stderr, err)
+		os.Exit(1)
+	}
 }
 
 func showNetwork(ctx *cli.Context) error {