From 78d8cc516fa302594b4c79931f7acdbcb40211ac Mon Sep 17 00:00:00 2001
From: Arnav Borborah <arnavborborah11@gmail.com>
Date: Sun, 13 Jan 2019 17:24:22 +0000
Subject: [PATCH] Change exit code for help and version messages to 0

---
 src/main.rs | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/main.rs b/src/main.rs
index 10d030e..031f6e3 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -272,6 +272,14 @@ fn main() {
     if let Err(err) = result {
         if let Some(clap_err) = err.downcast_ref::<clap::Error>() {
             eprint!("{}", clap_err); // Clap errors already have newlines
+
+            match clap_err.kind {
+                // The exit code should not indicate an error for --help / --version
+                clap::ErrorKind::HelpDisplayed | clap::ErrorKind::VersionDisplayed => {
+                    std::process::exit(0)
+                }
+                _ => (),
+            }
         } else {
             eprintln!("Error: {}", err);
         }