From b91f6bcbff4d03ad055aa14140c5ad4b8474b9d8 Mon Sep 17 00:00:00 2001
From: rleungx <rleungx@gmail.com>
Date: Thu, 19 Apr 2018 22:06:19 +0800
Subject: [PATCH] report parse errors to stderr

---
 src/bin/client-demo.rs | 6 +++++-
 src/bin/testnode.rs    | 6 +++++-
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/bin/client-demo.rs b/src/bin/client-demo.rs
index 0829c15e2f..50b2dd0640 100644
--- a/src/bin/client-demo.rs
+++ b/src/bin/client-demo.rs
@@ -12,6 +12,7 @@ use solana::transaction::Transaction;
 use std::env;
 use std::io::stdin;
 use std::net::UdpSocket;
+use std::process::exit;
 use std::thread::sleep;
 use std::time::{Duration, Instant};
 
@@ -27,7 +28,10 @@ fn main() {
     let args: Vec<String> = env::args().collect();
     let matches = match opts.parse(&args[1..]) {
         Ok(m) => m,
-        Err(f) => panic!(f.to_string()),
+        Err(e) => {
+            eprintln!("{}", e);
+            exit(1);
+        }
     };
 
     if matches.opt_present("s") {
diff --git a/src/bin/testnode.rs b/src/bin/testnode.rs
index 3e0ac84266..068a4c839b 100644
--- a/src/bin/testnode.rs
+++ b/src/bin/testnode.rs
@@ -11,6 +11,7 @@ use solana::event::Event;
 use solana::historian::Historian;
 use std::env;
 use std::io::{self, stdout, BufRead};
+use std::process::exit;
 use std::sync::atomic::AtomicBool;
 use std::sync::{Arc, Mutex};
 
@@ -22,7 +23,10 @@ fn main() {
     let args: Vec<String> = env::args().collect();
     let matches = match opts.parse(&args[1..]) {
         Ok(m) => m,
-        Err(f) => panic!(f.to_string()),
+        Err(e) => {
+            eprintln!("{}", e);
+            exit(1);
+        }
     };
     if matches.opt_present("p") {
         port = matches.opt_str("p").unwrap().parse().expect("port");