From ea185158553859f0e4f1da6f2f8e2ad7f71a15e1 Mon Sep 17 00:00:00 2001
From: Michael Gehring <mg@ebfe.org>
Date: Sun, 22 Jun 2014 13:57:42 +0200
Subject: [PATCH] comm: exit with status 1 on invalid arguments

---
 comm/comm.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/comm/comm.rs b/comm/comm.rs
index 7f0b425c2..7babb946d 100644
--- a/comm/comm.rs
+++ b/comm/comm.rs
@@ -125,7 +125,7 @@ pub fn uumain(args: Vec<String>) -> int {
         println!("");
         print(getopts::usage("Compare sorted files line by line.", opts.as_slice()).as_slice());
         if matches.free.len() != 2 {
-            return 0;
+            return 1;
         }
         return 0;
     }