From c841b518d1b773c4c3dfa78f21b50651b78f7b00 Mon Sep 17 00:00:00 2001
From: Michael Gehring <mg@ebfe.org>
Date: Sun, 18 May 2014 13:09:46 +0200
Subject: [PATCH] comm: add --version

---
 comm/comm.rs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/comm/comm.rs b/comm/comm.rs
index 8e4bfcdab..7a9ad0063 100644
--- a/comm/comm.rs
+++ b/comm/comm.rs
@@ -88,6 +88,7 @@ pub fn main() {
         getopts::optflag("2", "", "suppress column 2 (lines uniq to FILE2)"),
         getopts::optflag("3", "", "suppress column 3 (lines that appear in both files)"),
         getopts::optflag("h", "help", "display this help and exit"),
+        getopts::optflag("V", "version", "output version information and exit"),
     ];
 
     let matches = match getopts::getopts(args.tail(), opts) {
@@ -95,6 +96,11 @@ pub fn main() {
         Err(err) => fail!("{}", err.to_err_msg()),
     };
 
+    if matches.opt_present("version") {
+        println!("{} {}", NAME, VERSION);
+        return;
+    }
+
     if matches.opt_present("help") || matches.free.len() != 2 {
         println!("{} {}", NAME, VERSION);
         println!("");