From 199b4e437b6102cf72abf6d93d1a1b6043d3ada5 Mon Sep 17 00:00:00 2001
From: Hanif Bin Ariffin <hanif.ariffin.4326@gmail.com>
Date: Sat, 10 Jul 2021 18:49:11 +0800
Subject: [PATCH] Removed manual checks to just using clap instead

Also added tests for this.

Signed-off-by: Hanif Bin Ariffin <hanif.ariffin.4326@gmail.com>
---
 src/uu/tr/src/tr.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/uu/tr/src/tr.rs b/src/uu/tr/src/tr.rs
index 1a696f3b9..153128bfd 100644
--- a/src/uu/tr/src/tr.rs
+++ b/src/uu/tr/src/tr.rs
@@ -364,6 +364,7 @@ pub fn uu_app() -> App<'static, 'static> {
             Arg::with_name(options::SETS)
                 .multiple(true)
                 .takes_value(true)
+                .min_values(1)
                 .max_values(2),
         )
 }