From b59c1dae59ffdb60c37dc6abcc62e72665e8280e Mon Sep 17 00:00:00 2001
From: Jeong YunWon <jeong@youknowone.org>
Date: Fri, 11 Jun 2021 14:25:40 +0900
Subject: [PATCH] stdbuf: clean up returning Err

---
 src/uu/stdbuf/src/stdbuf.rs | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/src/uu/stdbuf/src/stdbuf.rs b/src/uu/stdbuf/src/stdbuf.rs
index 5baff4825..a69e0c2c5 100644
--- a/src/uu/stdbuf/src/stdbuf.rs
+++ b/src/uu/stdbuf/src/stdbuf.rs
@@ -152,10 +152,8 @@ fn check_option(matches: &ArgMatches, name: &str) -> Result<BufferType, ProgramO
                 }
             }
             x => {
-                let size = match parse_size(x) {
-                    Some(m) => m,
-                    None => return Err(ProgramOptionsError(format!("invalid mode {}", x))),
-                };
+                let size = parse_size(x)
+                    .ok_or_else(|| ProgramOptionsError(format!("invalid mode {}", x)))?;
                 Ok(BufferType::Size(size))
             }
         },