From 510d2f7a7656aba040816bf379eebbd4e4a6c4ed Mon Sep 17 00:00:00 2001
From: Benjamin Sago <ogham@bsago.me>
Date: Wed, 17 May 2017 21:01:12 +0100
Subject: [PATCH] --help and --version should have exit code 0
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This makes it possible to use them in scripts. Also, I couldn’t find any other program returned a different error code! So it’s being changed to 0.

Fixed #180.
---
 src/options/misfire.rs | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/options/misfire.rs b/src/options/misfire.rs
index 1ee437d..288d9b3 100644
--- a/src/options/misfire.rs
+++ b/src/options/misfire.rs
@@ -55,8 +55,11 @@ impl Misfire {
 
     /// The OS return code this misfire should signify.
     pub fn error_code(&self) -> i32 {
-        if let Misfire::Help(_) = *self { 2 }
-                                   else { 3 }
+        match *self {
+            Misfire::Help(_) => 0,
+            Misfire::Version => 0,
+            _                => 3,
+        }
     }
 
     /// The Misfire that happens when an option gets given the wrong