From f4aca6c6cbab31d237131cbdf858ed2be792b1b7 Mon Sep 17 00:00:00 2001
From: Pascal Bachor <bachorp@pm.me>
Date: Sat, 4 Jul 2026 18:07:19 +0200
Subject: [PATCH] numfmt: require equals for --header

---
 src/uu/numfmt/src/numfmt.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/uu/numfmt/src/numfmt.rs b/src/uu/numfmt/src/numfmt.rs
index 080e0200e22..92d7205bcb4 100644
--- a/src/uu/numfmt/src/numfmt.rs
+++ b/src/uu/numfmt/src/numfmt.rs
@@ -516,7 +516,8 @@ pub fn uu_app() -> Command {
                 .num_args(..=1)
                 .value_name("N")
                 .default_missing_value(HEADER_DEFAULT)
-                .hide_default_value(true),
+                .hide_default_value(true)
+                .require_equals(true),
         )
         .arg(
             Arg::new(ROUND)