From 8ace291b3292f2f422cf9670ccd98be983f44bf3 Mon Sep 17 00:00:00 2001
From: Michael Debertol <michael.debertol@gmail.com>
Date: Tue, 6 Jul 2021 13:26:28 +0200
Subject: [PATCH] sort: make -k only take one argument per flag

This makes it so that `sort -k 1 file` treats `file` as the input file
and not the second key.
---
 src/uu/sort/src/sort.rs    | 1 +
 tests/by-util/test_sort.rs | 8 ++++++++
 2 files changed, 9 insertions(+)

diff --git a/src/uu/sort/src/sort.rs b/src/uu/sort/src/sort.rs
index 1ba5ee0b5..55bcdb77b 100644
--- a/src/uu/sort/src/sort.rs
+++ b/src/uu/sort/src/sort.rs
@@ -1267,6 +1267,7 @@ pub fn uu_app() -> App<'static, 'static> {
                 .help("sort by a key")
                 .long_help(LONG_HELP_KEYS)
                 .multiple(true)
+                .number_of_values(1)
                 .takes_value(true),
         )
         .arg(
diff --git a/tests/by-util/test_sort.rs b/tests/by-util/test_sort.rs
index 1d41ddac5..4a1cc3fa9 100644
--- a/tests/by-util/test_sort.rs
+++ b/tests/by-util/test_sort.rs
@@ -951,3 +951,11 @@ fn test_conflict_check_out() {
             );
     }
 }
+
+#[test]
+fn test_key_takes_one_arg() {
+    new_ucmd!()
+        .args(&["-k", "2.3", "keys_open_ended.txt"])
+        .succeeds()
+        .stdout_is_fixture("keys_open_ended.expected");
+}