From 43dbff7c562a3a2d1f1e5e44092cb91d1db6a815 Mon Sep 17 00:00:00 2001
From: Hanif Bin Ariffin <hanif.ariffin.4326@gmail.com>
Date: Sun, 25 Jul 2021 16:16:12 +0800
Subject: [PATCH] Something wrong with rust iterator...

Signed-off-by: Hanif Bin Ariffin <hanif.ariffin.4326@gmail.com>
---
 src/uu/tr/src/operation.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/uu/tr/src/operation.rs b/src/uu/tr/src/operation.rs
index 72845e531..504f8ac3a 100644
--- a/src/uu/tr/src/operation.rs
+++ b/src/uu/tr/src/operation.rs
@@ -487,7 +487,7 @@ impl TranslateOperation {
         if truncate_set1_flag {
             set1_solved.truncate(set2_solved.len());
         }
-        let fallback = set2.iter().map(Sequence::last).last().flatten().expect(
+        let fallback = set2.last().map(Sequence::last).flatten().expect(
             format!(
                 "{}: when not truncating set1, string2 must be non-empty",
                 executable!()